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Title: Theism and Humanism

Author: Arthur James Balfour

Release date: August 25, 2018 [eBook #57773]

Language: English

Credits: Produced by Richard Hulse, Les Galloway and the Online
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*** START OF THE PROJECT GUTENBERG EBOOK THEISM AND HUMANISM ***




Produced by Richard Hulse, Les Galloway and the Online
Distributed Proofreading Team at http://www.pgdp.net (This
file was produced from images generously made available
by The Internet Archive)





Transcriber’s Notes

Obvious typographical errors have been silently corrected.

Italics are represented thus _italic_.

Footnotes have been placed at the end of each Lecture.




                          THEISM AND HUMANISM


                                 BEING
                         THE GIFFORD LECTURES
             DELIVERED AT THE UNIVERSITY OF GLASGOW, 1914


                                BY THE
                     RT. HON. ARTHUR JAMES BALFOUR
                      M.A., F.R.S., LL.D., D.C.L.
              (HON. FELLOW OF TRINITY COLLEGE, CAMBRIDGE)


                         HODDER AND STOUGHTON
                   LONDON      NEW YORK      TORONTO
                                 MCMXV




       _Printed in Great Britain by Hazell, Watson & Viney, Ld.
                        London and Aylesbury._




  TO THE PROFESSORS AND STUDENTS
  OF THE UNIVERSITY OF GLASGOW,
  WHO GAVE SO KIND A RECEPTION
  TO THESE LECTURES ON THEIR DELIVERY
  IN THE BUTE HALL, I
  DEDICATE THIS VOLUME.




PREFACE


This volume contains the substance of the Gifford Lectures delivered
at the University of Glasgow in January and February 1914. I say the
_substance_ of the lectures, lest any of those who formed part of my
most kindly audience should expect a verbal reproduction of what they
then heard. No such reproduction would have been either expedient or
possible. The lectures were not read: they were spoken (with the aid
of brief notes) in such terms as suggested themselves at the moment;
and their duration was rigidly fixed, to suit my academic audience,
so as just to occupy the customary hour. Although, therefore, they
were largely (though not wholly) based upon written drafts, none of
the language, and not all the ideas and illustrations contained in the
original could be reproduced in the spoken lectures, nor did everything
in the spoken lectures represent passages in the written originals.

It is not, in these circumstances, surprising that the work has had,
in large measure, to be rewritten, though the argument itself, and
the order in which its various parts are presented for consideration,
remains substantially unchanged.

I should not have troubled the reader with this very unimportant
narrative except for the purpose of explaining the long interval that
has elapsed between the delivery of the lectures and their publication.
Literary composition I have always found laborious and slow, even in
favourable conditions. But the conditions have not been favourable. My
anxiety to make the argument easy to read for persons who take little
interest in, and have small knowledge of, philosophical controversies
did not make it easy to write; while external circumstances were
singularly unfavourable to rapid composition. No one who took any part
in public affairs between March 1914 and the outbreak of the war, or
between the outbreak of the war and the present moment, is likely to
regard these months as providing convenient occasion for quiet thought
and careful writing. I say this, however, not as an excuse for poor
workmanship, but only as an explanation of long delay.

It may be desirable to warn the intending reader before he embarks on
these lectures, that though the basis of the argument is wide, its
conclusion is narrow: and though that conclusion is religious, the
discussions leading up to it are secular. I make no dialectical use of
the religious sentiment; nor do I attempt any analysis of its essential
character. Still less do I deal with any doctrines outside what is
called “natural” religion; for to “natural” religion the Gifford
Lecturer is expressly confined. But even themes which might well be
deemed to fall within these limits are scarcely referred to. For
example, God, freedom, and immortality have been treated by at least
one eminent writer as the great realities beyond the world of sense. I
believe in them all. But I only discuss the first—and that only from a
limited point of view.

One other caution I must give, though it is hardly necessary. No
one, I suppose, is likely to consult this small volume in the hope
of finding an historic survey, properly “documented,” of the great
theistic controversy. But, if so misguided an individual exists, he is
doomed to the severest disappointment. There have been, and will be,
Gifford Lecturers well equipped for so great an undertaking; but most
assuredly I am not among them.

My warm thanks are due to my brother, Mr. Gerald Balfour; my sister,
Mrs. Sidgwick, and my brother-in-law, Lord Rayleigh, for the trouble
they have taken in reading the proofs, and for the aid they have given
me in correcting them.

In connection with a passage in the ninth lecture, Sir Oliver Lodge
has been good enough to give me an interesting note on “energy,” which
appears in its proper place.

  4 CARLTON GARDENS
  _May 24, 1915_.




CONTENTS


  PART I

  _INTRODUCTORY_


  LECTURE I

                                                                    PAGE

  I. INTRODUCTORY: METAPHYSICS AND THE “PLAIN MAN”                     3

  II. “INEVITABLE” BELIEFS AND COMMON SENSE                           13

  III. THE MATERIAL OF THE PRESENT ARGUMENT FOR THEISM:
       THE CHARACTER OF THE THEISM TO BE ESTABLISHED                  17

  IV. WHAT THE ARGUMENT IS NOT. SOME OF ITS LIMITATIONS               23


  LECTURE II

  I. DESIGN AND SELECTION                                             28

  II. ARGUMENT FROM VALUES. THE COGNITIVE AND THE CAUSAL SERIES       44


  PART II

  _ÆSTHETIC AND ETHICAL VALUES_


  LECTURE III

  ÆSTHETIC AND THEISM

  I. ÆSTHETIC DESCRIBED                                               55

  II. WHENCE COMES IT?                                                58

  III. VALUES AND THE HIGHER EMOTIONS                                 63

  IV. NATURAL BEAUTY                                                  77

  V. ÆSTHETIC OF HISTORY                                              81


  LECTURE IV

  ETHICS AND THEISM

  I. ETHICS DESCRIBED                                                 95

  II. EGOISM, ALTRUISM, AND SELECTION                                 98

  III. SELECTION AND THE HIGHER MORALITY                             107

  IV. SAME SUBJECT CONTINUED                                         119

  V. THEISM AND THE COLLISION OF ENDS                                122


  PART III

  _INTELLECTUAL VALUES_


  LECTURE V

  INTRODUCTION TO PART III

  I. RETROSPECT                                                      133

  II. REASON AND CAUSATION                                           134

  III. LESLIE STEPHEN, AND LOCKE’S APHORISM                          136

  IV. REASON AND EMPIRICAL AGNOSTICISM                               145


  LECTURE VI

  PERCEPTION, COMMON SENSE, AND SCIENCE

  I. COMMON SENSE AND THE EXTERNAL WORLD                             149

  II. SCIENCE AND THE EXTERNAL WORLD                                 153

  III. PRIMARY AND SECONDARY QUALITIES                               156

  IV. PERCEPTION AS A CAUSAL SERIES                                  160

  V. PERCEPTION AS A COGNITIVE ACT                                   165

  VI. AN IRRESISTIBLE ASSUMPTION                                     170


  LECTURE VII

  PROBABILITY, CALCULABLE AND INTUITIVE

  I. MATHEMATICIANS AND PROBABILITY                                  175

  II. CALCULABLE PROBABILITY                                         178

  III. INTUITIVE PROBABILITY                                         189


  LECTURE VIII

  UNIFORMITY AND CAUSATION

  I. HABIT, EXPECTATION, INDUCTION                                   192

  II. REGULARITY, CAUSATION                                          195

  III. THE PRINCIPLE OF NEGLIGIBILITY                                199

  IV. CAUSATION AND FOREKNOWLEDGE                                    207


  LECTURE IX

  TENDENCIES OF SCIENTIFIC BELIEF

  I. FROM BELIEFS THAT WE MUST HOLD TO BELIEFS THAT WE
     ARE INCLINED TO HOLD                                            217

  II. ATOMISM. BELIEFS OF CONSERVATION                               220

  III. EPILOGUE                                                      238


  PART IV

  _SUMMARY AND CONCLUSION_


  LECTURE X

  I. HUMANISM AND THEISM                                             247

  II. THE DOCTRINE OF CONGRUITY                                      249

  III. IS THIS SYSTEMATIC PHILOSOPHY?                                261

  IV. CONCLUSION                                                     268


[_The paragraph headings in this Table of Contents are not designed to
give more than a very imperfect suggestion of the subjects discussed.
I have put them in for the convenience of those who, having read the
book, wish to refer back to some particular passage. The headings do
not appear in the text._]




PART I

_INTRODUCTORY_




LECTURE I


I

Those responsible for the selection of Gifford Lecturers have made it
clear that, in their interpretation of Lord Gifford’s Trust, studies
in a very wide range of subjects are relevant to the theme of Natural
Religion. Gifford lectures have been devoted to such diverse themes
as Comparative Religion, Primitive Mythologies, Vitalism, Psychology
of Religious Experiences, the History of Religious Development at
particular Epochs. And, in addition to these, we have had expounded
to us systems of Metaphysics of more than one type, and drawing their
inspiration from more than one school.

When I was honoured by an invitation to take a share in the perennial
debate which centres round what Lord Gifford described as Natural
Religion, I had to consider what kind of contribution I was least
unfitted to make. Perhaps if this consideration had preceded my reply
to the invitation, instead of following it, I might have declined the
perilous honour. Neither in my own opinion nor in that of anybody else,
am I qualified to contribute a special study of any of the scientific,
psychological, anthropological, or historical problems which may throw
light upon the central issue. This must of necessity be the work of
specialists. No metaphysical system, again, am I in a position to
provide;—for reasons which will appear in the sequel. A merely critical
commentary upon the systems of other people might hardly meet either
the expectations of my audience, or the wishes of those who appointed
me to the post. Indeed, the enormous range of modern philosophic
literature, and the divergent tendencies of modern philosophic thought
would make the task, in any case, one of extreme difficulty. Few,
indeed, are those who, by the width of their reading and the quickness
of their intellectual sympathy, are qualified to survey the whole field
of contemporary speculation; and, assuredly, I am not among them.

The vast amplitude of relevant material daily growing with the growth
of knowledge, cannot but hamper the sincerest efforts of those who
desire to take a comprehensive view of the great problems which Lord
Gifford desired to solve. Most men are amateurs in all departments
of activity but the one, be it scientific or practical, or artistic,
to which they have devoted their lives. Bacon, indeed, with the
magnificent audacity of youth, took all knowledge for his province.
But he did so in the sixteenth century, not in the twentieth; and even
Bacon did not escape the charge of being an amateur. No one, while
human faculty remains unchanged, is likely to imitate his ambitions.
More and more does the division and subdivision of labour become
necessary for knowledge, as for industry. More and more have men to
choose whether they shall be dabblers in many subjects or specialists
in one. More and more does it become clear that, while each class
has its characteristic defects, both are required in the republic of
knowledge.

So far as specialists are concerned, this last proposition is
self-evident. Specialists are a necessity. And it may well be that
those who have successfully pressed forward the conquering forces of
discovery along some narrow front, careless how the struggle towards
enlightenment fared elsewhere, may be deemed by the historian to have
been not only the happiest, but the most useful thinkers of their
generation. Their achievements are definite. Their contributions to
knowledge can be named and catalogued. The memory of them will remain
when contemporary efforts to reach some general point of view will
seem to posterity strangely ill-directed, worthless to all but the
antiquarian explorers of half-forgotten speculation.

Yet such efforts can never be abandoned, nor can they be confined to
philosophers. There are for all men moments when the need for some
general point of view becomes insistent; when neither labour, nor care,
nor pleasure, nor idleness, nor habit will stop a man from asking how
he is to regard the universe of reality, how he is to think of it as a
whole, how he is to think of his own relation to it.

Now I have no wish to overpraise these moments of reflection. They are
not among the greatest. They do not of necessity involve strenuous
action, or deep emotion, or concentrated thought. Often they are
periods of relaxation rather than of tension, moods that pass and
leave no trace. Yet it is not always so; and when the pressure of
these ancient problems becomes oppressive, then those who, from taste
or necessity, have lived only from hour to hour, seek aid from those
who have had leisure and inclination to give them a more prolonged
consideration.

Of these there is no lack; some speaking in the name of science, some
in the name of religion, some in the name of philosophy. The founder of
these lectures regarded philosophy, and (if I mistake not) philosophy
in its most metaphysical aspect, as the surest guide to the truths of
which he was in search. And certainly I am the last to criticise such
a view. It is clearly the business of metaphysicians, if they have any
business at all, to provide us with a universal system. They cannot
lose themselves in concrete details, as may happen to men of science.
They are neither aided, nor trammelled, as all working organisations,
whether in Church or State, are necessarily aided and trammelled, by
institutional traditions and practical necessities. They exist to
supply answers to the very questions of which I have been speaking.
Yet metaphysics does not appeal, and has never appealed, to the world
at large. For one man who climbs to his chosen point of view by a
metaphysical pathway, a thousand use some other road; and if we ask
ourselves how many persons there are at this moment in existence whose
views of the universe have been consciously modified by the great
metaphysical systems (except in so far as these have been turned to
account by theologians), we must admit that the number is insignificant.

Now, I do not think this is due to the fact, so often commented upon,
both by the friends of metaphysics and its foes, that in this branch
of inquiry there is little agreement among experts; that the labours
of centuries have produced no accepted body of knowledge; that, while
the separate sciences progress, metaphysics, which should justify them
all, seems alone to change without advancing. Mankind is not so easily
discouraged. New remedies are not less eagerly adopted because old
remedies have so often failed. Few persons are prevented from thinking
themselves right by the reflection that, if they be right, the rest
of the world is wrong. And were metaphysical systems what men wanted,
the disagreements among metaphysicians would no more destroy interest
in metaphysics than the disagreements among theologians destroys
interest in theology. The evil, if evil it be, lies deeper. It is not
so much that mankind reject metaphysical systems, as that they omit
the preliminary stage of considering them. Philosophy is now, perhaps
has always been, an academic discipline which touches not our ordinary
life. A general knowledge of the historic schools of thought may indeed
be acquired by the young as part of their education; but it is commonly
forgotten by the middle-aged; and, whether forgotten or remembered, is
rarely treated as in any vital relation to the beliefs and disbeliefs
which represent their working theories of life and death.

If you desire confirmation of this statement, consider how few men of
science have shown the smallest interest in metaphysical speculation.
Philosophers, with one or two notorious exceptions, have commonly had a
fair amateur acquaintance with the science of their day. Kant, though I
believe that his mechanics were not always beyond reproach, anticipated
Laplace in one famous hypothesis. Descartes and Leibnitz would be
immortalised as mathematicians if they had never touched philosophy,
and as philosophers if they had never touched mathematics. In our own
day Huxley not only contributed to biology, but wrote on philosophy.
Yet, speaking generally, metaphysics has in modern times been treated
by men of science with an indifference which is sometimes respectful,
more commonly contemptuous, almost always complete.

Nor can we attribute this attitude of mind, whether on the part
of scientific specialists or the general public, to absorption in
merely material interests. There are some observers who would have
us believe that the energies of Western civilisation are now[1]
entirely occupied in the double task of creating wealth and disputing
over its distribution. I cannot think so; I doubt whether there has
been for generations a deeper interest than at this moment in things
spiritual—however different be its manifestations from those with which
we are familiar in history. We must look elsewhere for an explanation
of our problem. There must be other reasons why, to the world at large,
those who study metaphysics seem to sit (as it were) far apart from
their fellow-men, seeking wisdom by methods hard of comprehension, and
gently quarrelling with each other in an unknown tongue.

Among these reasons must no doubt be reckoned the very technical
character of much metaphysical exposition. Some of this could be
avoided, much of it could not; and, in any case, philosophers might
well ask why people should expect metaphysics—to say nothing of logic
and psychology—to be easier of comprehension than the differential
calculus or the electro-magnetic theory of light. Plainly, there is no
reason: and, in so far as the thoughts to be expressed are difficult,
and the language required to express them is unfamiliar, the evil
admits of no remedy.

But there is something more to be said. It must, I think, be admitted
that most men approach the difficulties of a scientific exposition far
more hopefully than the difficulties of a metaphysical argument. They
will take more trouble because they expect more result. But why? In
part, I think, because so much metaphysical debate is not, or does not
appear to be, addressed to the problems of which they feel the pinch.
On the contrary, it confuses what to them seems plain; it raises doubts
about what to them seems obvious; and, of the doubts which they _do_
entertain, it provides no simple or convincing solution.

The fact is, of course, that the metaphysician wants to re-think the
universe; the plain man does not. The metaphysician seeks for an
inclusive system where all reality can be rationally housed. The plain
man is less ambitious. He is content with the kind of knowledge he
possesses about men and things—so far as it goes. Science has already
told him much; each day it tells him more. And, within the clearing
thus made for him in the tangled wilderness of the unknown, he feels at
home. Here he can manage his own affairs; here he needs no philosophy
to help him. If philosophy can speak to him about questions on which
science has little to say, he will listen; provided always that the
problems dealt with are interesting, and the treatment of them easily
understood. He would like, for example, to hear about God, if there
be a God, and his Soul, if he has a Soul. But he turns silently away
from discussions on the One and the Many, on Subject and Object, on
degrees of Reality, on the possibility of Error, on Space and Time,
on Reason and Intuition, on the nature of Experience, on the logical
characteristics of the Absolute. These may be very proper topics for
metaphysicians, but clearly they are no topics for him.

Now I am far from saying that in these opinions the plain man is right.
His speculative ambitions are small, and his tacit assumptions are
many. What is familiar seems to him easy; what is unfamiliar seems
to him useless. And he is provokingly unaware of the difficulties
with which his common-sense doctrines are beset. Yet in spite of all
this, he has my sympathy; and I propose, with due qualifications and
explanations, to approach the great subject, described by the Trust as
Natural Religion, from his—the plain man’s—point of view.


II

But what _is_ the plain man’s point of view? What _is_ the creed of
common sense?

It has never been summed up in articles, nor fenced round with
definitions. But in our ordinary moments we all hold it; and there
should be no insuperable difficulty in coming to an agreement about
certain of its characteristics which are relevant to the purposes of my
immediate argument. One such characteristic is that its most important
formulas represent beliefs which, whether true or false, whether proved
or unproved, are at least _inevitable_. All men accept them in fact.
Even those who criticise them in theory live by them in practice.

Now this category of “inevitableness” is not often met with in
metaphysics; indeed, so far as I know, it is not met with at all. We
hear of innate beliefs, _a priori_ judgments, axioms, laws of thought,
truths of reason, truths the opposite of which is “inconceivable”—and
so forth. These various descriptions are all devised in the interests
of epistemology, i.e. the theory of knowledge. They are intended
to mark off classes of judgments or beliefs which possess peculiar
validity. But none of these classes are identical with the class
“inevitable.” There are inevitable beliefs which nobody would think
of describing either as _a priori_ or axiomatic. There are others of
which the contradictory is perfectly conceivable; though no one who had
other things to do would take the trouble to conceive it. An inevitable
belief need not be self-evident, nor even, in the last analysis,
self-consistent. It is enough that those who deem it in need of proof
yet cannot prove it, and those who think it lacks coherence yet cannot
harmonise it, believe it all the same.

But, are there such inevitable beliefs? There certainly are. We cannot,
in obedience to any dialectical pressure, suppose the world to be
emptied of persons who think, who feel, who will; or of things which
are material, independent, extended, and enduring. We cannot doubt that
such entities exist, nor that they act on one another, nor that they
are in space or time. Neither can we doubt that, in the world thus
pictured, there reigns an amount of stability and repetition, which
suggests anticipations and retrospects—and sometimes justifies them.

These beliefs are beliefs about what are sometimes called “facts”
and sometimes “phenomena”—neither term being either very convenient
or very accurate. They are assumed in all sciences of nature, in all
histories of the past, in all forecasts of the future, in all practice,
in all theory, outside philosophy itself. But there are two other
kinds of beliefs which must, I think, be also regarded as inevitable,
of which I shall have to speak in the course of these lectures. They
have unfortunately no generic names, and I must defer any description
of them till future lectures. It is sufficient for the moment to say
that one of them relates to the ends of action, and includes morals;
while the other relates to objects of contemplative interest, among
which is beauty. In some shape or other—perhaps in shapes which seem
to us utterly immoral or disgusting—beliefs of both kinds are, so far
as I can judge, entertained by all men. And though they have not the
coercive force possessed by such beliefs as those in the independent
existence of things and persons, they may be counted, for my purposes,
among the inevitable.

Here, then, are three classes of belief which in some shape or other
common sense holds, has always held, and cannot help holding. But
evidently the shapes in which they may be held are many. They vary
from age to age and from person to person. They are modified by
education, by temperament, by the general condition of learning, by
individual opportunities, and by social pressure. The common sense of
the twentieth century A.D. is very different from the common sense of
the twentieth century B.C. Yet, different though it be, it possesses
unalterable similarities, and up to a certain point submits to the same
classification.

If you desire an illustration, consider the case of matter, or of
material things. All men believe in what is commonly called the
“external world”—they believe in it with evidence, or without evidence,
sometimes (like David Hume) in the teeth of evidence, in any case
independently of evidence. But as to what this “external world” really
is they differ profoundly. The expert of to-day differs from the expert
of yesterday, both differ from the average man, the average man of the
twentieth century differs from his predecessors, and they differ from
each other according to the stage of general and scientific culture at
which they have severally arrived.


III

But, though all this be granted, to what, you may be disposed to ask,
does it lead? What has it got to do with Theism? It is not alleged
that in any shape these inevitable beliefs are necessarily true; it is
admitted that in most of the shapes in which men have held them they
are actually false; it is not even suggested that a belief in God is to
be counted among them. How, then, is Natural Theology advanced?

To answer this question would be to anticipate the nine lectures which
are still to come. In the meanwhile, it may be enough to say that these
beliefs of common sense supply the material on which I propose to
work; that I shall treat them as a developing and improving system,
of which the present phase is the most developed and the best. It is
with this phase that I am chiefly concerned. If, for example, I make
use of beliefs about the “external world” they will be (mainly) the
beliefs of contemporary or recent science so far as I know them. If I
make use of ethics or æsthetics, it will be the ethics and æsthetics
of Western civilisation, not of Melanesia. I shall not add to them nor
subtract from them. I shall not criticise nor question them. I shall
accept them at their face values. But I shall ask what this acceptance
implies. I shall ask how these values are to be maintained. And in
particular I shall inquire whether the course of development, whose
last known stages these beliefs represent, can be regarded as a merely
naturalistic process without doing fatal damage to their credit.

The answer I shall give to this last question will be in the negative.
And, if the only alternative to Naturalism be Theism, as from the
common-sense standpoint it certainly is, then the effect of my
argument, for those who accept it, will be to link up a belief in God
with all that is, or seems, most assured in knowledge, all that is, or
seems, most beautiful in art or nature, and all that is, or seems,
most noble in morality.

At this point you will inevitably ask me to explain what sort of Deity
He is whose existence I wish to establish. Men have thought of God in
many ways. In what way is He thought of in these lectures?

The question is legitimate, though I am in some doubt how far you
will regard my answer as satisfactory. I, of course, admit that the
conception of God has taken many shapes in the long-drawn course of
human development, some of them degraded, all of them inadequate.
But this, or something like this, was inevitable on any theory of
development; and the subject-matter of theology does not seem to have
fared differently in this respect from the subject-matter (say) of
physics or psychology. It is in all cases the later stages of the
process which mainly concern us.

There is, however, something more to be said. The highest conceptions
of God seem to approximate to one of two types, which, without
prejudice, and merely for convenience, I may respectively call the
religious and the metaphysical. The metaphysical conception emphasises
His all-inclusive unity. The religious type emphasises His ethical
personality. The metaphysical type tends to regard Him as the logical
glue which holds multiplicity together and makes it intelligible. The
religious type willingly turns away from such speculations about the
Absolute, to love and worship a Spirit among spirits. Which of these
types is contemplated in the argument that follows?

To this question I would reply by another. Are the two conceptions
incompatible? Must we abandon the second if we accept the first? If so,
it is the second of which I propose to speak. It is the God according
to religion, and not the God according to metaphysics, whose being I
wish to prove. But there are theologians and philosophers of repute who
think the two conceptions can be harmonised. They hold that belief in
a personal and transcendent God is consistent with the acceptance even
of those forms of Absolute Idealism which their friends call logical
and their critics call intellectual—in both cases, perhaps, without
sufficient justification.

For myself, I must admit that I have never succeeded to my own
satisfaction in fusing the two conceptions. Yet I do not profess to
be content with their separation. The attribution of personality to
God, though much truer, I think, than the denial of it, is manifestly
inadequate to the full reality we are struggling to express. Some of
the greatest religious teachers, Christian and non-Christian, that
the world has seen have more or less explicitly held both, or at
least have leaned towards neither exclusively. This is surely true,
for example, of Plato the Greek philosopher, of Philo the platonising
Jew, of St. Paul the Christian Apostle, of St. Augustine the patristic
theologian. Nor (so far as I know), has religious mysticism ever felt
the least difficulty in bridging the chasm by which, in the eyes of
discursive reason, the two conceptions seem to be divided. This may
well represent the highest wisdom. But, the argument of these lectures
has a narrower scope: and when, in the course of them, I speak of God,
I mean something other than an Identity wherein all differences vanish,
or a Unity which includes but does not transcend the differences which
it somehow holds in solution. I mean a God whom men can love, a God to
whom men can pray, who takes sides, who has purposes and preferences,
whose attributes, howsoever conceived, leave unimpaired the possibility
of a personal relation between Himself and those whom He has created.

But is not this (it may be objected) the degradation of religion? What
is a deity so conceived but the old tribal god, with his character
improved and his local limitations swept away? If God be not the
Absolute, can he be more than a magnified man? Can you hope to cleanse
these religious conceptions from the mud in which they once so rankly
flourished?

Now there are plenty of unsolved, and perhaps insoluble, difficulties
involved in the religious, or indeed in any other, conception of God.
But I hardly count among them the lowly origin and crime-stained
history of religious development. On this point you will be able to
form a better opinion as these lectures proceed. But, in the meanwhile,
it may be observed that though no tragic accompaniments attach to the
growth of a purely Absolutist philosophy, this by no means implies that
metaphysics is better than religion. It is true that, for the sake of
a purely logical Absolute, no man has been moved to do what a later
and higher morality condemns—to placate it, for example, with bloody
rites or obscene revels. But this is because, for the sake of such
an Absolute, no man has ever yet been moved to do anything at all. A
belief in it may be the conclusion of our intellectual labours; but
hardly (as it seems to me) their motive or their reward.


IV

Let me now bring this introductory lecture to a close by adding to
what, so far, must seem a bare and obscure suggestion of what my
argument _is_, a warning hint as to what, at first sight, it might seem
to be, but is _not_.

It is not an argument from common sense, as that phrase ought properly
to be interpreted. It does not say to the opponents of Theism: “You
accept current beliefs in science, in morality, in ethics. In some
shape or other common sense has always accepted them, in some shape or
other you cannot help accepting them. You do, in fact, probably accept
them in the shape which finds favour with the ‘best thought of the
age’ or what you conceive to be such. This is common sense. Why not
do in the sphere of religion what you are admittedly doing in these
other spheres of theory and practice? Would not this be common sense
also? True, there is one important difference between the two cases.
Theological beliefs are not inevitable—at least not at our present
stage of culture. It is possible to be an atheist; and easy to be an
agnostic. But inevitableness, in itself, is no ground of philosophic
certitude. So this point may be ignored; and in all other respects the
parallel seems to be complete. Some form of Theism has been prevalent
from an immemorial past. It has strongly appealed to the needs and
feelings of mankind. You do not pause before accepting beliefs about
things and persons till philosophy has solved all the speculative
doubts about them which philosophy itself has raised. Why, then, should
you apply a standard of rationality to religion which, with general
approval, you reject in the case of science?”

Now I do not suggest that this is bad advice. Quite the contrary.
Neither is it necessarily bad argument. But it is not the argument of
these lectures. Whatever be its intrinsic merits, it has, from my point
of view, the defect of implying a theory of knowledge—a very modest
and unassuming theory indeed; but still a theory. And it therefore
comes into competition with all other theories of knowledge—Absolutist,
Empirical, Pragmatic, Neo-Kantian, Neo-Hegelian, Realist, New Realist,
to say nothing of Professor Mach’s philosophy of science, or M.
Bergson’s world-famous speculations.

Now I preach no theory of knowledge; partly because I have none to
preach, partly because, in these lectures, I desire to dogmatise as
little as I can about fundamentals, and to be constructive rather
than critical. If you ask me how it is possible to be constructive
without first settling fundamentals, and how it is possible to settle
fundamentals without first being critical, I reply that it is only
possible if you start from premises which are practically accepted by
both parties to the controversy, however little agreement there may be
as to their speculative proof; and this is what I am trying to do.

Nor ought this procedure to be deemed unworthy of the attention of
serious thinkers. It is provisional, no doubt; but I do not think it
shallow. It can never give us a metaphysic of the universe; but the
creators of such a metaphysic, when they come, will not find it stand
in their way. Moreover, it takes account of facts as they are. A creed
of some kind, religious or irreligious, is a vital necessity for all,
not a speculative luxury for the few: and the practical creed of the
few who speculate has a singular, and even suspicious, resemblance to
that of the many who do not. While those rare individuals who have
thought deeply about the theory of knowledge are profoundly divided as
to _why_ we should believe, they largely agree as to _what_ we should
believe with that vast multitude who, on the theory of knowledge,
have never thought at all. Is not this a circumstance in itself most
worthy of closer consideration? May it not guide us to some approximate
solution of our present perplexities? The present lectures are an
attempt to answer this question.

Is my argument, then, nothing better than an appeal from the competent
to the incompetent, from the few to the many? By no means. Progress,
though of small account unless it touch the many, gets its vital
impetus always from the few. It is to the patient labours of those
rare intelligences who possess originality, courage, subtlety, and
sympathy that we must look for the gradual working out of a theory of
the universe which shall as fully satisfy our reason and our conscience
as the limitations of our faculties permit. But that consummation is
not yet. And since, whether we be philosophers or not, we all act on
a working body of root-beliefs about men and things: since we are
also in general agreement as to the form in which those beliefs can
best express the present state of knowledge, is it not legitimate to
ask whether, on the basis thus provided, a still larger measure of
practical harmony cannot in the meantime be reasonably established? It
is true that Theism could never by such methods acquire a certitude
either greater than, or independent of, the beliefs of science and
common sense. But, could it acquire as much, theologians might well be
content, though philosophers most rightly strove for more.


FOOTNOTES:

[1] Written before the war.




LECTURE II


I

The argument, then, which I propose to lay before you, though its
material is provided by our common-sense beliefs, is not an argument
from common sense. It does not extend to theology those uncritical
methods which we accept (most of us without protest) in the sphere
of our every-day activities. Is it, then, you may be tempted to ask,
some form of the yet more familiar argument from design? Is it more
than Paley and the Bridgwater treatises brought up to date? And, if
so, has not the vanity of all such endeavours been demonstrated in
advance: from the side of sceptical philosophy by Hume; from the side
of idealist philosophy by Kant and his successors; from the side of
empirical philosophy by the nineteenth-century agnostics; from the
side of science by the theory of Natural Selection? Do not the very
catch-words of the argument—“contrivance,” “design,” “adaptation,”
exercised by the “Architect of the Universe” fill us with a certain
weariness? Do they not represent the very dregs of stale apologetics;
the outworn residue of half-forgotten controversies?

For my own part, I do not think the argument from contrivance bad, but
I do think it very limited: limited in respect of its premises; limited
also in respect of its conclusions. It may, perhaps, be worth dwelling
on some of these limitations, if only to make my own position clearer
by contrast.

In the first place, it must be noted that, from a consideration of
inanimate nature alone it is difficult, perhaps impossible, to infer
design. The mere existence of natural laws is not, as it seems to me,
a sufficient basis for the argument; we require also that these laws
should combine to subserve an end. Were the universe, for example, like
a huge impervious reservoir of some simple gas, where nothing rested
but nothing changed, where amid all the hurry and bustle of colliding
atoms no new thing was ever born, nor any old thing ever perished, we
might find in it admirable illustrations of natural law, but no hints,
so far as I can see, of purpose or design. Nor is the case really
mended if, instead of thus artificially simplifying inanimate nature,
we consider it in all its concrete complexity. Even cosmic evolution of
the Spencerian type will scarcely help us. Herbert Spencer, as we know,
regarded the world-story as a continuous progress from the simple to
the complex, in which the emergence of the living out of the not-living
is treated as a harmonious episode in one vast evolutionary drama. The
plot opens in the first chapter with diffused nebulæ; it culminates
in the last with the social organisation of man. Unfortunately its
central episode, the transition from the not-living to the living, was
never explained by the author of the “Synthetic Philosophy”; and the
lamentable gap must be filled in by each disciple according to his
personal predilections. For the moment, however, we are concerned only
with one part of the story, that which deals with the evolution of
inanimate nature. Can this be regarded as displaying design? I hardly
think so. Granting, for the sake of argument, the validity of the
Spencerian physics, granting that the material Universe exhibits this
general trend from the simple to the complex, from a loose diffusion
of nebulous matter to the balanced movements of suns and satellites,
does this of itself give any hint of purpose? Only, I believe, if we
confound evolution with elaboration and elaboration with improvement,
and read into it some suggestion of progress borrowed from biology or
ethics, sociology or religion.

But we have not the slightest right to do this. Apart from life and
thought, there is no reason to regard one form of material distribution
as in any respect superior to another. A solar system may be more
interesting than its parent nebula; it may be more beautiful. But if
there be none to unravel its intricacies or admire its splendours, in
what respect is it better? Its constituent atoms are more definitely
grouped, the groups move in assignable orbits; but why should the
process by which these results have been achieved be regarded as
other than one of purposeless change super-induced upon meaningless
uniformity? Why should this type of “evolution” have about it any
suggestion of progress? And, if it has not, how can it indicate design?

Spencer himself was, of course, no advocate of “design” after the
manner of Paley; and I only mention his cosmic speculations because
their unavowed optimism—the optimism that is always apt to lurk in the
word “evolution”—makes of them material peculiarly suitable for those
who seek for marks of design in lifeless nature. But let us add two
touches to Spencer’s picture, and see how the argument then stands.

I have already commented on the great omission which mars the
continuity of his world-story—the omission, I mean, of any account of
the transition from the not-living to the living. I shall have again
to refer to it. But there are, besides this, two other omissions, one
at the beginning of his narrative, and the other at the end, whose
significance in relation to “design” should receive a passing comment.

As I understand the matter, an intelligence sufficiently endowed—let
us call him Laplace’s calculator—might infer the past state of
the material universe from the present by a process of rigorous
deduction, on accepted physical principles. But, if he carried back his
investigations into a period sufficiently remote, he would find a point
at which certain fundamental processes reach a theoretical limit; and,
though we must believe that this condition of things had antecedents,
yet infinite powers of calculation, based upon infinite knowledge of
the present, could not, it seems, tell us what they were.

So much for the past. Now for the future. Here our calculator would
be more successful. His prophecy, unlike his history, would not break
helplessly against any impassable barrier. He could range at will over
the illimitable future. But the prospect, though unbounded, would
not be exhilarating. No faintest tinge of optimism would colour his
anticipations. Everything that happened, good or bad, would subtract
something from the lessening store of useful energy, till a time
arrived when nothing could happen any more, and the universe, frozen
into eternal repose, would for ever be as if it were not.

Do our ideas of material evolution, thus corrected and supplemented,
lend themselves easily to the argument from design? I hardly think so.
It is true that in retrospect we can ideally reach a limit which no
calculations, based upon physical laws, will permit us to overpass,
and that where (what in old-fashioned language were called) “secondary
causes” fail us, a First Cause may plausibly be invoked; but, if we
gaze forward instead of backward, the physical course of nature does
not merely fail to indicate design, it seems loudly to proclaim its
absence. A world where all energy suffers inevitable degradation,
considered by itself, appears atheistic on the face of it: nor can even
life consciousness or thought redeem it, if they, too, are doomed to
perish when further transformations of energy become impossible.

It is not, therefore, on any general survey of material nature that,
in the present state of our knowledge, we can base the argument
from “design.” Nor is this the foundation on which those who use
the argument have chiefly built. They have always sought for proofs
of contrivance rather among the living than among the dead. In the
intricate adjustment of different parts of an organism to the interests
of the whole; in the adaptation of that whole to its environment, they
found the evidence they required. Arrangements which so irresistibly
suggested purpose could not (they thought) be reasonably attributed to
chance.

This argument possessed immense force in what was, comparatively
speaking, the infancy of biology. Has that force been lessened by the
growth of knowledge? Yes and No. If we consider organic adaptations
and adjustments in themselves, scientific discovery has increased a
thousand-fold our sense of their exquisite nicety and their amazing
complexity. I take it as certain that, had no such theory as Natural
Selection been devised, nothing would have persuaded mankind that
the organic world came into being unguided by intelligence. Chance,
whatever chance may mean, would never have been accepted as a solution.
Agnosticism would have been scouted as stupidity.

All this has been changed, as every one knows, by Darwin. But what
exactly was it that, in this connection, Darwin did? He is justly
regarded as the greatest among the founders of the doctrine of organic
evolution; but there is nothing in the mere idea of organic evolution
which is incongruous with design. On the contrary, it almost suggests
guidance, it has all the appearance of a plan. Why, then, has Natural
Selection been supposed to shake teleology to its foundation?

The reason, of course, is that though the fact of Selection does not
make it harder to believe in design, it makes it easier to believe in
accident; and, as design and accident are the two mutually exclusive
alternatives between which the argument from design requires us to
choose, this comes to the same thing. Before Darwin’s great discovery
those who denied the existence of a Contriver were hard put to it to
explain the appearance of contrivance. Darwin, within certain limits
and on certain suppositions, provided an explanation. He showed how the
most complicated and purposeful organs, if only they were useful to the
species, might gradually arise out of random variations, continuously
weeded by an unthinking process of elimination. Assume the existence
of living organisms, however simple, let them multiply enough and vary
enough, let their variations be heritable, then, if sufficient time
be granted, all the rest will follow. In these conditions, and out of
this material, blind causation will adapt means to ends with a wealth
of ingenuity which we not only cannot equal, but which we are barely
beginning to comprehend.[2]

The theory of selection thus destroys much of the foundation on which,
a hundred years ago, the argument from design was based. What does it
leave untouched?

It leaves untouched all that can be inferred from the existence of
the conditions which make organic evolution possible: matter which
lives, multiplies, and varies; an environment which possesses the
marvellously complex constitution required to make these processes
possible. Selection may modify these conditions, but it cannot start
them. It may modify the manner in which multiplication is secured; it
may modify the lines which variations follow; it may enable organic
species to adapt their powers to their environment, and (within narrow
limits) their environment to their powers. But it cannot produce either
the original environment or the original living matter. These must be
due either to luck or to contrivance; and, if they be due to luck, the
luck (we must own) is great. How great we cannot say. We cannot measure
the improbability of a fortuitous arrangement of molecules producing
not merely living matter, but living matter of the right kind, living
matter on which selection can act. Here, indeed, Laplace’s calculator
might conceivably help us. But suppose him to have done so, suppose
him to have measured the odds against the accidental emergence of the
desired brand of protoplasm, how are we to compare _this_ probability
with its assumed alternative—intelligent design? Here, I think, even
Laplace’s calculator would fail us; for he is only at home in a
material world governed by mechanical and physical laws. He has no
principles which would enable him to make exhaustive inferences about a
world in which other elements are included: and such a world is ours.

For a Greek philosopher to assert that the world is material was
legitimate enough. He was in search of a universal principle; and if
he found it in matter we need neither wonder nor criticise. After all,
matter lies round us on every side; we are immersed in it; we are
largely dependent on it. It may well seem but a small step further, and
a very natural one, to treat it as the essence of all that is.

But, as it seems to me, we now know too much about matter to be
materialists. The philosophical difficulties in the way of accepting
a materialistic world-system are notorious—at least to philosophers.
But I am not speaking of them. I am thinking of the scientific
difficulties, those that cannot but suggest themselves when we consider
the breach of continuity involved in the appearance of life, and still
more obviously of feeling, at particular points in the long procession
of material causes and effects. The very essence of the physical order
of things is that it creates nothing new. Change is never more than a
redistribution of that which never changes. But sensibility belongs to
the world of consciousness, not to the world of matter. It is a new
creation, of which physical equations can give no account; nay, rather,
which falsifies such equations; which requires us to say that, before
a certain date in the history of the universe, energy in one shape was
converted into precisely the same amount of energy in another shape,
and into nothing more; that matter in one position was transferred to
another position without increase or diminution: but that, after this
date, the transformations of energy and the movements of matter were
sometimes accompanied by psychical “epiphenomena” which differ from
them in kind, which are incommensurable with them in amount, and which
no equations can represent.

Babbage, in order to show how occasional “miracles” might “naturally”
break the continuity of the longest sequences, devised a machine which
produced numbers according to a particular law for an indefinite
period, then broke this uniformity by a single exception, and,
thereafter, reverted for ever to its original principle of action.
But Babbage’s results, however startling, depended wholly on known
mathematical and mechanical laws. Their irregularity was only
apparent. To Laplace’s calculator, they would have seemed not merely
inevitable but obvious. It is quite otherwise with the appearance
and disappearance of feeling, thought, will, consciousness in
general, within the strictly determinal series of mechanical causes
and effects. Here the anomaly is real: the breach of continuity
inexplicable by any physical laws and indeed incompatible with them.
I am not at this moment concerned either to deny or to assert that
at the critical frontier where mind and matter meet, the even course
of nature suffers violence. I am not suggesting, for example, that,
if a given physiological state were exactly repeated, the psychical
state formerly associated with it would not be repeated also. My point
is different. It is that in a strictly determined physical system,
depending on the laws of matter and energy alone, no room _has_ been
found, and no room _can_ be found, for psychical states at all. They
are novelties, whose intrusion into the material world cannot be
denied, but whose presence and behaviour cannot be explained by the
laws which that world obeys.

The difficulty is a very familiar one; and I cannot see that the
progress either of science or philosophy has brought us nearer to its
solution. But what (you may be disposed to ask) has it to do with the
argument from design? At least this much:

Those who refuse to accept design do so because they think the
world-story at least as intelligible without it as with it. This
opinion is very commonly associated with a conception of the universe
according to which the laws of matter and energy are sufficient to
explain, not only all that is, but all that has been or that will be.
If we thus know the sort of explanation which is sufficient to cover
the facts, why (it is asked) should we travel further afield into the
misty realms of theology or metaphysics?

But the explanation does not cover the facts, even when all has
been conceded to the opponents of design that I, at least, am ready
to concede. Grant that the inorganic world, considered in and for
itself, does not suggest contrivance; grant that the contrivance
which the organic world does undoubtedly suggest may in great part
be counterfeit—there still remains a vast residue of fact quite
recalcitrant to merely physical explanation. I will not argue whether
in this residue we should or should not include life. It is enough
that we must undoubtedly include feeling and all other phases of
consciousness. We must include them, even if they be no more than the
passive accompaniments of material change; still more must we include
them if we speculatively accept (what I deem to be) the inevitable
belief that they can, within limits, themselves initiate movement and
guide energy. The choice, therefore, is not between two accounts of the
universe, each of which may conceivably be sufficient. The mechanical
account is not sufficient. It doubly fails to provide a satisfactory
substitute for design. In the first place, it requires us to believe
that the extraordinary combination of material conditions required for
organic life is due to hazard. In the second place, it has to admit
that these material conditions are insufficient, and have somehow to be
supplemented. We must assume, that is to say, an infinitely improbable
accident, and, when we have assumed it, we are still unprovided with an
explanation. Nay, the case is even worse—for the laws by whose blind
operation this infinitely improbable accident has been brought about
are, by hypothesis, mechanical; and, though mechanical laws can account
for rearrangements, they cannot account for creation; since, therefore,
consciousness is more than rearrangement, its causes must be more than
mechanical.

To me, then, it seems that the common-sense “argument from design” is
still of value. But, if it carries us beyond mechanical materialism, it
must be owned that it does not carry us very far towards a religious
theology. It is inconsistent with Naturalism: it is inconsistent with
Agnosticism. But its demands would be satisfied by the barest creed
which acknowledged that the universe, or part of it, showed marks
of intelligent purpose. And, though most persons willing to accept
this impoverished form of Theism will certainly ask for more, this is
not because they are swept forward by the inevitable logic of the
argument, but because the argument has done something to clear a path
which they were already anxious to pursue.


II

As the conclusions which I desire to establish are richer in contents
than any which can be derived merely from marks of contrivance, so
the method of arriving at them is essentially different. In the
first place, it is based not upon considerations drawn from external
nature, but from the mind and soul of man. Stress is laid, not upon
contrivances, adjustments, and the happy adaptation of means to ends,
but on the character of certain results attained. It is not an argument
from design, but an argument from value. To emphasise the contrast, it
might be called an argument _to_ design. Value (we assert) is lost if
design be absent. Value (you will ask) of what? Of our most valuable
beliefs, (I answer) and of their associated emotions.

We are, no doubt, accustomed to connect the notion of value rather
with things believed in, than with the beliefs of which they are the
subjects. A fine symphony, an heroic deed, a good dinner, an assured
livelihood, have admitted values. But what values can we attribute
to beliefs and judgments, except is so far as they are aids and
instruments for obtaining valuable objects?

This question, however, is based, as I think, upon an insufficient
survey of the subject. We are in search of a world outlook. Creeds,
therefore, are our concern. The inquiry with which these lectures are
concerned is whether, among the beliefs which together constitute
our general view of the universe, we should, or should not, include
a belief in God. And to this question it is certainly relevant to
inquire whether the elimination of such a belief might not involve a
loss of value in other elements of our creed—a loss in which we are not
prepared to acquiesce.

But how, you will ask, is this loss of value brought about? What is
the connection between a belief in God and a belief concerning (say)
beauty, or goodness, or natural law? Evidently the connection is not,
in the ordinary sense, a logical one. Neither æsthetic, nor ethic, nor
scientific judgments can be ‘deduced’ from Theism; nor can Theism be
‘deduced’ from them. We are not dealing with premises and conclusions
bound together by a formal chain of inference. How, then, is our
procedure to be described?

In order to make this clear, I must call your attention to a double
aspect possessed by all beliefs alike, whatever be the subject-matter
with which they deal. All beliefs have a position, actually or
potentially, in a cognitive series; all beliefs, again, have a
position, known or unknown, in a causal series. All beliefs, in so far
as they belong to the first kind of series, are elements in one or
more collections of interdependent propositions. They are conclusions,
or premises, or both. All beliefs, in so far as they belong to the
second kind of series, are elements in the temporal succession of
interdependent events. They are causes, or effects, or both.

It has, further, to be noted that whereas reasons may, and usually do,
figure among the proximate causes of belief, and thus play a part in
both kinds of series, it is always possible to trace back the causal
series to a point where every trace of rationality vanishes; where we
are left face to face with conditions of beliefs—social, physiological,
and physical—which, considered in themselves, are quite a-logical in
their character.

It is on this last point that I particularly desire to insist. We are
all very familiar with the equivocal origin of most human creeds. To
be sure, we observe it chiefly in the case of other people. In our own
case, we dwell by preference on those causes of our beliefs which are
also reasons. But in our detached studies of the opinions we do not
share, we easily perceive how insufficient are the arguments officially
urged on their behalf, and how often even these insufficient arguments
have only a nominal connection with the convictions of which they claim
the legal paternity. We must, however, go yet one step further. We
must realise that, on any merely naturalistic hypothesis, the rational
elements in the causal series lie always on the surface. Penetrate
but a short way down, and they are found no more. You might as easily
detect life in the minerals wherein plants are rooted, as reason in
the physiological and physical changes to which the source of our most
carefully reasoned beliefs must, in the last resort, be traced.

Consider, for example, an extreme case—say a proposition of Euclid.
Here we have a belief logically inferred from well-assured premises—so,
at least, we were accustomed to suppose before mathematicians became
so very fastidious in the matter of proof. Can we not say that in
this case the elements of the two series are in a sense identical,
that all the causes for our belief are also reasons for it? Certainly
we are not moved by prejudice, or affection, or authority. It is
neither self-interest nor party passion that induces us to believe,
for example, that the three angles of a triangle are equal to two
right angles. Has our thought, then, in this case freed itself
from the dominion of a-logical conditions? Is our belief the child
of uncontaminated reason? I answer—No. Though the argument, _qua_
argument, is doubtless independent of time, the argumentative process
by which we are in fact convinced occurs in time, and, like all
psychological processes, is somehow associated with physiological
changes in the brain, These, again, are part of the general stream of
physical happenings, which in themselves have nothing rational about
them. Follow up this stream but a little further and every trace,
not only of mind but of life, is completely lost; and we are left
face to face with unthinking matter and its purposeless movements.
Logical inference is thus no more than the reasoned termination of an
unreasoning process. Scratch an argument, and you find a cause.

If this be admitted, the question at once arises whether we can treat
the two kinds of series thus intimately connected as separable when
we are estimating the values of the beliefs with which they are both
associated. Is it permissible, is it even possible, to ignore the
genesis of knowledge when we are considering its validity? Do not
origins qualify values?

In many cases they notoriously do. A distinguished agnostic once
observed that in these days Christianity was not refuted, it was
explained. Doubtless the difference between the two operations was, in
his view, a matter rather of form than of substance. That which was
once explained needed, he thought, no further refutation. And certainly
we are all made happy when a belief, which seems to us obviously
absurd, is shown nevertheless to be natural in those who hold it.

But we must be careful. True beliefs are effects no less than false.
In this respect magic and mathematics are on a level. Both demand
scientific explanation; both are susceptible of it. Manifestly,
then, we cannot admit that explanation may be treated as a kind
of refutation. For, if so, the more successfully science carried
out its explanatory task, the more completely would it shatter its
own principles. This way lies universal scepticism. Thus would all
intellectual values be utterly destroyed.

But we have not to do with intellectual values alone. There are beliefs
(as I have already said) round which crystallise complex emotions,
æsthetic and ethic, which play no small part in our highest life.
Without the beliefs the emotions would dwindle; without the emotions
the beliefs would lose their worth. Though they do not imply each other
in the world of logic, they are mutually necessary in the world of
values. Here, of course, there is no question of a contrast between the
logical and the causal series. Emotions are always effects; they are
never inferences. In their case, therefore, the relation of value to
origin is not obscured by considerations like those which must occupy
us in the case of mere beliefs; and we have to face in a simpler and
more direct form the central problem of these lectures: the problem of
the relation which origin bears to value. It is with this branch of
my subject as it is raised by æsthetic and by ethic emotions that I
shall be mainly occupied in the next two lectures. And as in the later
part of my course I shall contend that it is destructive of rational
values to root them in unreason, so I shall now contend that the
emotional values associated with, and required by, our beliefs about
beauty and virtue must have some more congruous source than the blind
transformation of physical energy. If I am successful in my endeavour
I shall have done something to show that “design” is demanded by all
that we deem most valuable in life, by beauty, by morals, by scientific
truth: and that it is design far deeper in purpose, far richer in
significance, than any which could be inferred from the most ingenious
and elaborate adjustments displayed by organic life.


FOOTNOTES:

[2] As I shall often have to mention “selection” in the course of these
lectures, I must observe that it is no part of my business to weigh the
comparative merits of competing evolutionary theories. It may be that
the hypothesis of small random variations accumulated or eliminated
according as they help or hinder survival, is, in the light of recent
research, insufficient and unsatisfactory. From my point of view this
is immaterial. I use the word “selection” as a convenient name for
any non-rational process, acting through heredity, which successfully
imitates contrivance. Darwin’s theory, be it true or false, still
provides, I suppose, the only suggestion as to how this feat may
be accomplished, and his terminology may be used without danger of
misunderstanding.




PART II

_ÆSTHETIC AND ETHICAL VALUES_




LECTURE III

ÆSTHETIC AND THEISM


I

In this lecture I have undertaken to consider certain beliefs and
emotions relating to beauty, and to inquire how far their value is
affected by our views as to their origin.

The poverty of language, however, makes it rather difficult to
describe with any exactness the scope of such an inquiry. Beauty is
an ill-defined attribute of certain members of an ill-defined class;
and for the class itself there is no very convenient name. We might
describe its members as “objects of æsthetic interest” always bearing
in mind that this description (as I use it) applies to objects of the
most varying degrees of excellence—to the small as well as the great,
the trifling as well as the sublime: to conjuring and dancing; to
literature, art, and natural beauty.

It follows from this description that, while all things of beauty
possess æsthetic interest, not all things of æsthetic interest would in
common parlance be described as beautiful.[3] They might, for example,
display wit, or finish, or skill. They might, therefore, properly
excite admiration. But beauty is a term whose use may well be confined
to the qualities which excite only the highest forms of æsthetic
interest, and it is thus I propose to employ it.

Now what are the characteristics which distinguish objects of æsthetic
interest from interesting objects generally? I will mention two.

In the first place, the value of æsthetic objects depends on the
intrinsic quality of the emotions they arouse, and not upon the
importance of any ulterior purpose which they may happen to subserve.
In the second place, the emotions themselves, whatever be their value,
must be _contemplative_. They must not prompt to action or reach
forward to any end. They must be self-sufficient, and self-contained.

Of course, I do not suggest that works of art are useless. A building
may be beautiful, although it is also convenient. A sword most
delicately damascened may be an admirable engine of destruction. We may
even go further and admit that utility unadorned may have about it an
æsthetic flavour. Nice adjustment and fitness exquisitely accomplished
are without doubt agreeable objects of contemplation. But, in the
first two of these cases, beauty is deliberately added to utility, not
organically connected with it. An ill-proportioned building might have
been equally fitted for its purpose; a plain sword might have been
equally lethal. In the third case the connection between utility and
æsthetic interest is organic, yet undesigned. From the very nature of
the case it forms no part of the purpose for which the mechanism was
contrived.

Again—when I say that æsthetic interest does not prompt to action,
I am, of course, speaking of those who enjoy, not of those who are
laboriously trying to enjoy, still less of those who create what is to
be enjoyed. It commonly requires effort, conscious and unconscious, to
be a good spectator; it always requires effort to become a good artist.
Yet these are no real exceptions to the principle. Æsthetic interests,
once aroused, do not prompt to action; and it is, I conceive, of their
essence that they should not. The most emotional spectator does not
rush to save Desdemona from Othello; and, though tragedy may (or may
not) purify by “pity and terror,” the pity does not suggest a rescue,
nor the terror urge to flight.


II

Now these characteristics of æsthetic emotions and beliefs raise
problems of great interest. How came they to be what they are? To what
causal process are they due? In the case of ethics (to anticipate a
discussion that will occupy us in the next lecture) the earlier stages
at least are seemingly due to selection. They lead to action, and to
action which has survival value. But what survival value have æsthetic
judgments and feelings at any stage of culture? It is true that
actions which are sometimes represented as primitive forms of artistic
creation play their part in the drama of animal courtship. Some animals
dance, some sing, some croak; some flaunt colours, some exhale smells.
Apes (it seems) make inarticulate noises which (according to Spencer)
were the humble beginnings, not only of speech, but of music. I own
that to me this sort of explanation leaves our æsthetic interests quite
unexplained. Grant, for the sake of argument that, were our knowledge
sufficient, we could trace a continuous history of musical emotions
from the simple satisfaction excited in the female ape by the howling
of the male, down to the delicate delights of the modern musician,
should we be nearer an answer to the problem of æsthetic causation?
I doubt it. Certainly we should not have succeeded in coupling the
development of our feelings for beauty to the general process of
organic evolution. Before this can be satisfactorily accomplished it
must be shown, not merely that the tastes of anthropoid apes are useful
to anthropoid apes, but that the tastes of men are useful to men, and
in particular that the tastes of civilised men are useful to civilised
men. Nor would even this be enough unless usefulness be carefully
defined in terms of survival value. It must, in other words, be shown
that communities rich in the genius which creates beauty and in the
sensibility which enjoys it, will _therefore_ breed more freely and
struggle more successfully than their less gifted neighbours. And I am
not aware that any attempt to establish such a doctrine has ever been
seriously undertaken.

But, if so, our æsthetic sensibilities must be regarded (from the
naturalistic standpoint) as the work of chance. They form no part
of the _quasi_ design which we attribute to selection; they are
unexplained accidents of the evolutionary process. This conclusion
harmonises ill with the importance which civilised man assigns to
them in his scheme of values. On this point, at least, there reigns
a singular unanimity. However people may differ as to what we should
admire, all are agreed that we should admire something. However they
may differ about the benefits to be derived from æsthetic, all are
agreed that the benefits are great. The pessimist finds in art the
solitary mitigation of human miseries. A certain type of agnostic
treats it as an undogmatic substitute for religion. He worships
beauty, but nothing else; and expects from it all the consolations of
religious experience without the burdens of religious belief. Even
those who would refuse to art and literature this exalted position, are
prepared to praise them without stint. They regard the contemplative
study of beautiful things as a most potent instrument of civilisation;
in countless perorations they preach its virtues; delicacy of æsthetic
discrimination they deem the surest proof of culture, and the enjoyment
of æsthetic excellence its highest reward.

The case is apparently, but not really, different when we turn
from beauty to the minor æsthetic interests—the popular novel, the
music-hall song, the cricket-match (as spectacle), the cinematograph,
and so forth. Nobody, it is true, greatly praises these things, but
multitudes greatly enjoy them. The space they occupy in the life of
the community has increased beyond computation. As locomotion becomes
easier and leisure greater that space will increase yet more. This
may be good or bad; but none will deny that it is important. What a
paradox this seems! Theories of selection were devised to explain the
complex structures and the marvellous adjustments of the organic world
without needlessly postulating design. We should think but poorly of
them if they accounted for some organs by methods quite inapplicable
to others—if they showed us, for example, how the eye had developed,
but appealed to some wholly different principle (say special creation)
when they set to work on the ear; or taught that the nose must be
regarded as an evolutionary accident not to be explained on any general
principle at all. If what required explanation was of small biological
importance, this last hypothesis would not seem perhaps startling. The
most convinced selectionist is not obliged to suppose that selection
eliminates everything which does not make for survival. Useless
variations may be spared if they be harmless. Even harmful variations
may be spared if they be linked to variations so advantageous that
their joint effect proves beneficial on balance. But is this the case
with æsthetic? Are we to treat as unconsidered trifles our powers
of enjoying beauty and of creating it? Can we be content with a
world-outlook which assigns to these chance products of matter and
motion so vast a value measured on the scale of culture, and no value
worth counting measured on the scale of race survival? If design may
ever be invoked where selection fails and luck seems incredible, surely
it may be invoked here.


III

These observations are applicable, more or less, to the whole body
of our æsthetic interests—whether they be roused by objects we deem
relatively trivial, or by objects which are admittedly rare and
splendid. But while neither fit comfortably into a purely naturalistic
framework, it is only the second which, in virtue of their intrinsic
quality, demand a source beyond and above the world of sense
perception. Here, then, we are face to face with a new question. So far
we have been concerned to ask whether that which is admittedly valuable
can be plausibly attributed to chance. Now we must ask whether that
which is attributed to chance can thereafter retain its value. Of these
questions the first is germane to the ordinary argument from design. It
is the second which chiefly concerns us in these lectures.

Perhaps an affirmative answer may seem to have been already given by
implication. The admission that the second problem only touches the
highest values in the æsthetic scale may be thought to render the whole
inquiry vain. And the admission cannot be avoided. No one supposes
that when we are looking (for example) at an acrobat, it matters in
the least what we think of the universe. Our beliefs and disbeliefs
about the Cosmic order will not modify either in quantity or quality
such satisfaction as we can derive from the contemplation of his grace
and agility. Where, then, it will be asked, do we reach the point in
the æsthetic scale at which values begin to require metaphysical or
theological postulates? Is it the point where beauty begins? If so, who
determine where this lies; and by what authority do they speak?

Evidently we are here on difficult and delicate ground. On questions
of taste there is notoriously the widest divergence of opinion. Nor,
if we regard our æsthetic interests simply as the chance flotsam and
jetsam of the evolutionary tides, could it well be otherwise. If there
be practically no “limits of deviation” imposed by selection; if,
from a survival point of view, one taste be as good as another, it is
not the varieties in taste which should cause surprise so much as the
uniformities.

To be sure, the uniformities have often no deep æsthetic roots. They
represent no strong specific likes and dislikes shared by all men at
a certain stage of culture, but rather tendencies to agreement (as
I have elsewhere called them), which govern our social ritual, and
thereby make social life possible. We rail at “fashion,” which by an
unfelt compulsion drives multitudes simultaneously to approve the same
dresses, the same plays, the same pictures, the same architecture, the
same music, and the same scenery. We smile at the obsequious zeal with
which men strive to admire what the prophets of the moment assure them
is admirable. But admitting, as I think we must, that these prophets
neither possess any inherent authority, nor can point to any standard
of appeal, we must also admit that if in Art there were no orthodoxies,
if the heresies themselves were unorganised, if every man based his
æsthetic practice on a too respectful consideration of his own moods
and fancies, the world we live in would be even more uncomfortable than
it is.

However this may be, it is clear that this second portion of my
argument, which is not based, like the first, on any objective survey
of the part played in human affairs by general æsthetic interests,
has special difficulties to surmount. For it rests on experiences of
high emotion rare for all, unknown to many, roused in different men
by different objects. How can any conclusions be securely based on
foundations at once so slender and so shifting?

I agree that the values dealt with in this part of the argument are
not values for everybody. Yet everybody, I think, would be prepared
to go some way in the direction I desire. They would acknowledge
that, in art, origin and value cannot be treated as independent.
They would agree that those who enjoy poetry and painting must be at
least dimly aware of a poet beyond the poem and a painter beyond the
picture. If by some unimaginable process works of beauty could be
produced by machinery, as a symmetrical colour pattern is produced by a
kaleidoscope, we might think them beautiful till we knew their origin,
after which we should be rather disposed to describe them as ingenious.
And this is not, I think, because we are unable to estimate works of
art as they are _in themselves_, not because we must needs buttress up
our opinions by extraneous and irrelevant considerations; but rather
because a work of art requires an artist, not merely in the order of
natural causation, but as a matter of æsthetic necessity. It conveys a
message which is valueless to the recipient, unless it be understood by
the sender. It must be expressive.

Such phrases are no doubt easily misunderstood. Let me, therefore,
hasten to add that by an “expressive” message I do not mean a message
which can be expressed in words. A work of art can never be transferred
from one medium into another, as from marble to music. Even when words
are the medium employed, perfect translation is impossible. One poet
may paraphrase, in a different language, the work of another; and a
new work of art may thus be produced. But however closely it follows
the original, it will never be the same. On the other hand, if the
medium used be (for example) colour, or sound, or stone, the work of
art cannot be translated into words at all. It may be described; and
the description may better the original. Yet it cannot replace it. For
every work of art is unique; and its meaning cannot be alternatively
rendered. But are we, therefore, to conclude that it has no meaning?
Because its message cannot be translated, has it therefore no message?
To put these questions is to answer them.

Many people, however, who would travel with me so far would refuse to
go further. They would grant that a work of art must be due to genius,
and not, in the first instance, to mechanism or to chance. But whether,
in the last resort, mechanism or chance has produced the genius, they
would regard as, from the æsthetic point of view, quite immaterial.
Music and poetry must have a personal source. But the musician and the
poet may come whence they will.

And perhaps, in very many cases, this is so; but not, I think, in
all, nor in the highest. If any man will test this for himself, let
him recall the too rare moments when beauty gave him a delight which
strained to its extremest limit his powers of feeling; when not only
the small things of life, but the small things of Art—its technical
dexterities, its historical associations—vanished in the splendour of
an unforgettable vision; and let him ask whether the attribution of
an effect like this to unthinking causes, or to an artist created and
wholly controlled by unthinking causes, would not go far to impair its
value.

To such an appeal it is not difficult to raise objections. It may be
said, for example, that, under the stress of emotions like those I
have described, no man troubles his head about problems of cosmology;
thought is merged in feeling; speculation is smothered. But though this
is true, it is not wholly true. As no pain, I suppose, is so intense
as to exclude all reflections on its probable duration, so no rapture
is so absorbing as to exclude all reflections on its probable source.
I grant that at such moments we do not philosophise; we do not analyse
a problem, turning it this way or that, and noting every aspect of it
with a cool curiosity. Nevertheless, for those accustomed to reflect,
reflection is never wholly choked by feeling. Nor can feeling, in the
long run, be wholly unaffected by reflection.

Again, it may be said that such moments too seldom occur in any man’s
experience to justify even the most modest generalisations—let alone
generalisations that embrace the universe. But this objection seems
to rest on a misapprehension. We must remember that the argument
from æsthetic values is not a scientific induction or a logical
inference. There is here no question of truth and falsehood, or even
of good taste and bad taste. We are not striving to isolate what is
essential to beauty by well-devised experiments; nor are we concerned
with psycho-physical determination of the normal relation between
feeling and stimulus. If it be urged that some particular example
of deep æsthetic emotion quite outruns the merits of its object, so
that sound canons of criticism require its value to be lowered, we
need not deny it. We are not dealing with sound canons of criticism;
though I may observe, in passing, that if they lower emotional values
in one direction without raising them in others, good taste becomes a
somewhat costly luxury. My point is different. I am not appealing to
all men, but only to some men—to those and to those only who, when they
explicitly face the problem, become deeply conscious of the incongruity
between our feelings of beauty and a materialistic account of their
origin.

The extreme individualism of this point of view may seem repulsive to
many. Are the feelings (they will ask) of some transient moment to be
treated as authentic guides through the mysteries of the universe,
merely because they are strong enough to overwhelm our cooler judgment?
And, if so, how far is this method of metaphysical investigation to
be pressed? Are we, for example, to attach transcendental value to
the feelings of a man in love? There is evidently a close, though
doubtless not a perfect, parallel between the two cases. It is true
that love is rooted in appetite, and that appetite has a survival value
which I, at least, cannot find in the purely contemplative emotions.
But romantic love goes far beyond race requirements. From this point of
view it is as useless as æsthetic emotion itself. And, like æsthetic
emotion of the profounder sort, it is rarely satisfied with the
definite, the limited, and the immediate. It ever reaches out towards
an unrealised infinity. It cannot rest content with the prose of mere
fact. It sees visions and dreams dreams which to an unsympathetic world
seem no better than amiable follies. Is it from sources like these—the
illusions of love and the enthusiasms of ignorance—that we propose
to supplement the world-outlook provided for us by sober sense and
scientific observation?

Yet why not? Here we have values which by supposition we are reluctant
to lose. Neither scientific observation nor sober sense can preserve
them. It is surely permissible to ask what will. And if Naturalism be
inimical to their maintenance, the fact should at least be noted.

It is true, no doubt, that these high-wrought feelings have worse
enemies even than naturalism. When the impassioned lover has sunk
into a good husband, and the worshipper of beauty has cooled into a
judicious critic, they may look back on their early raptures with
intelligent disdain. In that event there are for them no values to be
maintained. They were young, they were foolish, they made a mistake,
and there is no more to be said. But there is a higher wisdom. Without
ignoring what experience has to teach, they may still believe that
through these emotions they have obtained an authentic glimpse of a
world more resplendent and not less real than that in which they tramp
their daily round. And, if so, they will attribute to them a value
independent of their immediate cause—a value which cannot be maintained
in a merely naturalistic setting.[4]

This may seem a doctrine too mystical to suit the general tenor of
these lectures. Let me, therefore, hasten to add that our ordinary and
repeatable experiences of beauty seem to point in the same direction
as these rarer and more intense emotions. It is, of course, true that
even about these we cannot generalise as we may (for example) about
the external world. We cannot, I mean, assume that there is a great
body of æsthetic experience which all normal persons possess in common.
There is always something about our feeling for beautiful things
which can neither be described nor communicated, which is unshared
and unshareable. Many normal persons have no such feelings, or none
worth talking about. Their æsthetic interests may be great, but they
lie at a lower level of intensity. They do not really care for beauty.
Again, there are many who do care, and care greatly, who would yet
utterly repudiate the doctrine that the highest æsthetic values were
in any sense dependent on a spiritual view of the universe. The fact
that so much of the greatest art has been produced in the service of
religion they would not regard as relevant. They would remind us that
one great poet at least has been a passionate materialist; that many
have been pessimists; that many have been atheists; that many have been
in violent revolt against the religion of their age and country. Of
these we cannot say that their art suffered from their opinions, for we
cannot imagine what their art would have been like had their opinions
been different. Neither can we say that the readers who shared their
opinions, became, thereby, less qualified to enjoy their art. Such a
paradox would be too violent. How, then (the objectors may ask), are
facts like these to be harmonised with the views I am recommending?

Probably they cannot be harmonised. We are confronted with a difference
of temperament which must be accepted as final. Yet the contradiction
may often be less than at first appears. In the case which I brought
forward just now, strong æsthetic emotion was assumed to carry with
it, both at the crisis of immediate experience and yet more in periods
of reflective retrospect, a demand for some cause emotionally adequate
to its effect. In other words, it was assumed that such an experience
suggested the question—whence comes it? of matter? or of spirit? and
required the answer—if it be not born of spirit it is little, or it is
naught.

But in many cases this answer is not given because the question is not
asked; or, if it be asked, is misunderstood. And there are many reasons
why it should not be asked; and many why it should be misunderstood.

For there are two things which must, in this connection, be remembered.
The first is that materialism has never been the prevailing creed
among lovers of beauty. The second is that though (as I contend) a
deep-lying incongruity infects theories which trace the ultimate
genesis of beauty exclusively to causes which neither think, nor feel,
nor will, such theories involve no contradiction, nor can those who
hold them be taxed with inconsistency. There is, therefore, little
in the ordinary routine of artistic criticism which raises the point
which we are now discussing. A critic examining some artistic whole—a
picture, a poem, a symphony—is much occupied in separating out the
elements which contribute to the total effect, and in observing their
character, value, and mutual relations. But it is only when we cease to
analyse, when we contemplate, directly or in retrospect, the whole _as_
a whole, that the problem of origin arises; and even then it need never
become explicit. It may remain in the shape of an unsatisfied longing
for a spiritual reality beyond the sensuous impression, or of a vaguely
felt assurance that the spiritual reality is there. And in neither case
has it developed into a question definitely presented—and pressing for
a definite reply.

While, then, I am quite ready to believe that there are many persons
whose enjoyment of beauty is quite independent of their world outlook,
I am also convinced that there are some who count themselves among
the number only because they have never put the matter to the proof.
It may be that they have given but little thought to questions of
theology or metaphysics. It may be that they are pantheists after the
manner of Shelley, or pessimists after the manner of Schopenhauer.
Perhaps, again, they hold one or other of the theosophies which pass
current in the West as the esoteric wisdom of the East. In any case,
they are averse from orthodoxy, or what they regard as such. A lover of
the beautiful belonging to any type like these, if asked whether his
estimate of æsthetic values depended on his creed, might easily miss
the point of the inquiry, and his negative reply would be worthless.
Let the question, therefore, be put in different terms. Let him be
asked whether beauty would not lose value for him if his world-outlook
required him to regard it as a purposeless accident; whether the
æsthetic delights which he deems most exquisite would not be somewhat
dimmed if reflection showed them to be as vain, as transitory, though
not so useful, as the least considered pleasures of sense. If he
replies in the negative, there is no more to be said. This lecture
is not addressed to him. But I believe there are many to whom such
an answer would be profoundly unsatisfying; and they, at least, can
hardly deny that æsthetic values are in part dependent upon a spiritual
conception of the world we live in.


IV

So far I have been considering art and the beauty expressed by art. But
there are two kinds of æsthetic interest, which, though not artistic in
the ordinary sense of the word, are so important that something must be
said about them before this lecture closes.

The first of these is natural beauty. Hegel, if I rightly understand
him, altogether excluded this from the sphere of æsthetic. For him the
point of importance was Spirit—the Idea—expressing itself in art; and
since nature is not spirit, nor natural beauty art, the exclusion was
logical. For me, on the other hand, the main thing is feeling roused by
contemplation; and particularly feeling at its highest level of quality
and intensity. Natural beauty, therefore, cannot be ignored; since no
feelings of contemplation possess higher quality, or greater intensity,
than those which natural beauty can arouse.

Evidently, however, there is, even from my point of view, a great
difference between beauty in art and beauty in nature. For, in the
case of nature, there is no artist; while, as I observed just now, “a
work of art requires an artist, not merely in the order of natural
causation, but in the order of æsthetic necessity. It conveys a message
which is valueless to the recipient unless it be understood by the
sender. It must be significant.”

Are we, then, to lay down one rule for artistic beauty and another rule
for natural beauty? Must the first be expressive, but not the second?
Is creative mind necessary in one case, and superfluous in the other?
And if in the case of nature it be necessary, where is it to be found?
On the naturalistic hypothesis, it is not to be found at all. The glory
of mountain and of plain, storm and sunshine, must be regarded as
resembling the kaleidoscopic pattern of which I just now spoke; with
this difference only—that the kaleidoscope was designed to give _some_
pattern, though no one pattern more than another; while nature was not
designed with any intention at all, and gives us its patterns only by
accident.

I know not whether you will think that this train of thought is helped
or hindered by bringing it into relation with our scientific knowledge
of natural realities. The world which stirs our æsthetic emotions is
the world of sense, the world as it appears. It is not the world as
science asks us to conceive it. This is very ill-qualified to afford
æsthetic delight of the usual type; although the contemplation of
complicated relations reduced to law may produce an intellectual
pleasure in the nature of æsthetic interest. Yet none, I think, would
maintain that mass and motion abstractly considered, nor any concrete
arrangement of moving atoms or undulating ether, are beautiful as
represented in thought, or would be beautiful could they become objects
of perception. We have a bad habit of saying that science deals with
nothing but “phenomena.” If by phenomena are meant appearances, it
is to æsthetics rather than to science that, on the principle of
Solomon’s judgment, phenomena most properly belong. To get away from
appearances, to read the physical fact behind its sensuous effect, is
one chief aim of science; while to put the physical fact in place of
its sensuous effect would be the total and immediate ruin of beauty
both in nature and in the arts which draw on nature for their material.
Natural beauty, in other words, would perish if physical reality and
physical appearance became one, and we were reduced to the lamentable
predicament of perceiving nature as nature is!

Now, to me, it seems that the feeling for natural beauty cannot, any
more than scientific curiosity, rest satisfied with the world of
sensuous appearance. But the reasons for its discontent are different.
Scientific curiosity hungers for a knowledge of causes; causes which
are physical, and, if possible, measurable. Our admiration for natural
beauty has no such needs. It cares not to understand either the
physical theories which explain what it admires, or the psychological
theories which explain its admiration. It does not deny the truth of
the first, nor (within due limits) the sufficiency of the second. But
it requires more. It feels itself belittled unless conscious purpose
can be found somewhere in its pedigree. Physics and psycho-physics, by
themselves, suffice not. It longs to regard beauty as a revelation—a
revelation from spirit to spirit, not from one kind of atomic agitation
to the “psychic” accompaniment of another. On this condition only can
its highest values be maintained.[5]


V

There is yet one other subject of æsthetic interest on which I desire
to say something before the course of these lectures carries me into
very different regions of speculation. The subject I refer to is
history.

That history has æsthetic value is evident. An age which is both
scientific and utilitarian occasionally pretends to see in it no more
than the raw material of a science called sociology, and a storehouse
of precedents from which statesmen may draw maxims for the guidance of
mankind. It may be all this, but it is certainly more. What has in the
main caused history to be written, and when written to be eagerly read,
is neither its scientific value nor its practical utility, but its
æsthetic interest. Men love to contemplate the performances of their
fellows, and whatever enables them to do so, whether we belittle it as
gossip or exalt it as history, will find admirers in abundance.

Yet the difference between this subject of contemplative interest and
those provided either by beauty in art or beauty in nature are striking.

In the first place, history is not concerned to express beauty. I do
not deny that a great historian, in narrating some heroic incident,
may rival the epic and the saga. He may tell a tale which would be
fascinating even if it were false. But such cases are exceptional,
and ought to be exceptional. Directly it appears that the governing
preoccupation of an historian is to be picturesque, his narrative
becomes intolerable.

This is because the interest—I mean the _æsthetic_ interest—of history
largely depends upon its accuracy; or (more strictly) upon its supposed
accuracy. Fictitious narrative, whether realistic or romantic, may
suggest deeper truths, may tell us more about the heart of man,
than all the histories that ever were written; and may tell it more
agreeably. But fact has an interest, because it is fact; because it
actually happened; because actual people who really lived and really
suffered and really rejoiced caused it to happen, or were affected by
its happening. And on this interest the charm of history essentially
depends.

In this respect there is, I think, a certain analogy between the
æsthetic interest aroused by history and that aroused by natural
beauty. Our pleasure in a landscape is qualified if we discover
ourselves to have been the victims of an optical delusion. If, for
example, purple peaks are seen on a far horizon, the traveller may
exclaim, “What beautiful mountains!” Something thereupon convinces him
that the mountains are but clouds, and his delight suffers an immediate
chill. But why? The mountains, it is true, proved unreal; but they had
as much reality as mountains in a picture. Where lies the essential
difference between a representation accidentally produced by condensed
vapour and a representation deliberately embodied in paint and canvas?
It is not to be found, as might be at first supposed, in the fact
that the one deceives us and the other does not. Were we familiar with
this particular landscape, did we know that nothing but a level plain
stretched before us to the limits of our vision, we might still feel
that, if the clouds on the horizon were what they seemed to be, the
view would gain greatly in magnificence. Here there is no deception and
no shock of disillusionment. If, therefore, we remain dissatisfied, it
is because in this case verisimilitude does not suffice us; we insist
on facts.

It has, perhaps, not been sufficiently noticed that brute fact, truth
as it is apprehended in courts of law, truth as it is given by an
accurate witness speaking on oath, has for some purposes great æsthetic
value. That it is all-important in the dealings between man and man
would be universally conceded; that it has no importance either in fine
art or imaginative literature, and no meaning in music or architecture,
most people would be ready to admit. But that it possesses worth
where no practical issues are involved, and that this worth is of the
contemplative or æsthetic order, is perhaps not so easy of acceptance.
Yet so it is. A tale which would be inexpressibly tedious if we thought
it was (in the “law court” sense) false may become of absorbing
interest if we think it true. And this not because it touches morals
or practice, not because it has theoretic interest or controversial
importance, but in its own right and on its own merits.

Now this æsthetic quality is, it seems to me, required both from
“natural beauty” and historic narrative; but if there is here a
resemblance between them, in other respects they are profoundly
different. Landscape appeals to us directly. I do not mean that our
enjoyment of it, both in quality and quantity, is not largely due to
the work of artists. Our tastes have, no doubt, been formed and our
sensibilities educated by the interpretation of nature which we owe to
painters and poets. But though this is true, it is also true that what
we see and what we enjoy is not art but nature, nature at first hand,
nature seen immediately, if not as she is, at least as she appears. In
the case of history it is otherwise. Except when we happen to have been
ourselves spectators of important events, there is always an artist to
be reckoned with. It may be Thucydides. It may be Dr. Dryasdust. It may
be a mediæval chronicler. It may be Mrs. Candour at the tea-table. But
there is always somebody; and though that somebody might repudiate
the notion that his narrative was a work of art, yet he cannot evade
responsibility for selection, for emphasis, and for colour. We may
think him a bad artist, but, even in his own despite, an artist he
is;—an artist whose material is not marble or sound, but brute fact.

There is another way in which the æsthetic interest of history
characteristically differs from the interest we feel in beauty, whether
of art or of nature. It is massive rather than acute. Particular
episodes may indeed raise the most poignant emotions. But, broadly
speaking, the long-drawn story of man and his fortunes stirs feelings
which (to borrow a metaphor from physics) are great in quantity but of
low intensity. So it comes about that, whereas in the case of art the
emotions stand out prominently above their associated judgments, in the
case of history the positions are commonly reversed.

Yet this need not be so; and in particular it need not be so when we
are contemplating the historical process as a whole. Details are then
merged in a general impression; and the general impression drives us
beyond the limits of history proper into questions of origin and
purpose, into reflections about man and destiny, into problems of
whence and whither. Speculations like these have an emotional as well
as an intellectual value, which must be affected by the answers we give
them.

Let me illustrate and explain. It is possible, indeed it is easy, to
contemplate aspects of history with the coolest intellectual interest.
In this mood we might, for instance, study the development of science
and religion out of primitive magics and superstitions. In this mood
we might observe the characteristics of the city state, or the growth
and decay of feudalism, or the history of the Mongols. On the other
hand, the interest often becomes tinged with stronger feelings when we
sympathetically follow the changing fortunes of particular individuals
or communities. We are then, as it were, spectators of a drama, moved
by dramatic hopes and fears, dramatic likes and dislikes, dramatic
“pity and terror.” And our emotions are not merely those appropriate to
drama; they have, besides, that special quality (already referred to)
which depends on the belief that they are occasioned by real events in
a world of real people.

But there is yet a third case to be considered, in which the two
previous cases are included and partially submerged. This occurs when
the object of our contemplative interest is not episodic but general,
not the fate of this man or that nation, this type of polity or that
stage of civilisation, but the fate of mankind itself, its past and
future, its collective destiny.

Now we may, if we please, treat this as no more than a chapter of
natural history. Compared with the chapter devoted, let us say, to the
Dinosaurs it no doubt has the disadvantage of being as yet unfinished,
for the Dinosaurs are extinct, and man still survives. On the other
hand, though the natural history of “Homo Sapiens” is incomplete, we
may admit that it possesses a peculiar interest for the biologist; but
this interest is scientific, not historical.

For what does historical interest require? Not merely “brute fact,” but
brute fact about beings who are more than animals, who look before and
after, who dream about the past and hope about the future, who plan and
strive and suffer for ends of their own invention; for ideals which
reach far beyond the appetites and fears which rule the lives of their
brother beasts. Such beings have a “natural history,” but it is not
with this that we are concerned. The history which concerns us is the
history of self-conscious personalities, and of communities which are
(in a sense) self-conscious also. Can the contemplative values which
this possesses, especially in its most comprehensive shape, be regarded
as independent of our world-outlook? Surely not.

Observe that history, so conceived, must needs compare faculty with
desire, achievement with expectation, fulfilment with design. And no
moralist has ever found pleasure in the comparison. The vanity of
human wishes and the brevity of human life are immemorial themes of
lamentation; nor do they become less lamentable when we extend our
view from the individual to the race. Indeed, it is much the other
way. Men’s wishes are not always vain, nor is every life too brief
to satisfy its possessor. Only when we attempt, from the point of
view permitted by physics and biology, to sum up the possibilities
of collective human endeavour, do we fully realise the “vanity of
vanities” proclaimed by the Preacher.

I am not, of course, suggesting that history is uninteresting because
men are unhappy: nor yet that naturalism carries pessimism in its
train. It may well be that if mankind could draw up a hedonistic
balance-sheet, the pleasures of mundane existence would turn out to
be greater than its sufferings. But this is not the question. I am not
(for the moment) concerned with the miseries of the race, but with its
futility. Its miseries might be indefinitely diminished, yet leave its
futility unchanged. We might live without care and die without pain;
nature, tamed to our desires, might pour every luxury into our lap;
and, with no material wish unsatisfied, we might contemplate at our
ease the inevitable, if distant, extinction of all the life, feeling,
thought, and effort whose reality is admitted by a naturalistic creed.

But how should we be advanced? What interest would then be left in the
story of the human race from its sordid beginnings to its ineffectual
end? Poets and thinkers of old dimly pictured a controlling Fate
to which even the Olympian gods were subject. The unknown power,
which they ignorantly worshipped, any text-book on physics will now
declare unto you. But no altars are erected in its honour. Its name
is changed. It is no longer called Fate or Destiny, but is known by a
title less august if more precise, the law of energy-degradation, or
(if you please) “the second law of thermo-dynamics.” It has become
the subject of scientific experiment; the physicists have taken it
over from the seers, and its attributes are defined in equations. All
terrestrial life is in revolt against it; but to it, in the end, must
all terrestrial life succumb. Eschatology, the doctrine of the last
things, has lapsed from prophecy to calculation, and has become (at
least potentially) a quantitative science.

And, from a scientific point of view, this is quite satisfactory. But
it is not satisfactory when we are weighing the æsthetic values of
universal history. Shakespeare, in the passionate indictment of life
which he puts into the mouth of Macbeth, declares it to be “a tale
told by an idiot, full of sound and fury,” and (mark well the climax)
“_signifying nothing_.” That is the point with which in this lecture
we are chiefly concerned. It most clearly emerges when, in moments of
reflection, we enlarge the circuit of our thoughts beyond the needs of
action, and, in a mood untouched by personal hopes or fears, endeavour
to survey man’s destiny as a whole. Till a period within the memory
of men now living it was possible to credit terrestrial life with
an infinite future, wherein there was room for an infinite approach
towards some, as yet, unpictured perfection. It could always be hoped
that human efforts would leave behind them some enduring traces, which,
however slowly, might accumulate without end. But hopes like these are
possible no more. The wider is the sweep of our contemplative vision
the more clearly do we see that the rôle of man, if limited to an
earthly stage, is meaningless and futile;—that, however it be played,
in the end it “signifies nothing.” Will any one assert that universal
history can maintain its interest undimmed if steeped in the atmosphere
of a creed like this?

Here, however, we are evidently nearing the frontier which divides
æsthetic from ethic. Before I cross it, and begin a new subject, let me
very briefly touch on a difficulty which may have occurred to some of
my hearers.

The line of thought followed in the last section of this lecture
assumes, or seems to assume, that our only choice lies between history
framed in a naturalistic, and history framed in a theistic, setting. In
the first case we have a world-outlook which forbids the attribution
of permanent value to human effort; in the second case we have a
world-outlook which requires, or, at the least, permits it. But are
these the only alternatives? What are we to say, for example, about
those metaphysical religions which, whether they be described as
theistic, pantheistic, or atheistic, agree in regarding all life as
illusion, all desire as wretchedness, and deem the true end of man to
be absorption in the timeless identity of the real? Such creeds have no
affinity with naturalism. Philosophically they are in sharpest contrast
to it. But even less than naturalism do they provide history with a
suitable setting. For naturalism does, after all, leave untouched the
interest of historical episodes, so long as they are considered out of
relation to the whole of which they form a part. As we are content, in
the realm of fiction, to bid farewell to the hero and heroine on their
marriage, unmoved by anxieties about their children, so, in the realm
of “brute fact,” we may arbitrarily isolate any period we choose, and
treat the story of it without reference to any theories concerning the
future destiny of man. But this process of abstraction must surely be
useless for those who think of the world in terms of the metaphysical
religions to which I have referred. In their eyes all effort is
inherently worthless, all desire inherently vain. Nor would they change
their opinion even were they persuaded that progress was real and
unending; that effort and desire were building up, however slowly, an
imperishable polity of super-men. For those who in this spirit face the
struggling world of common experience the contemplative interest of
universal history must be small indeed.


FOOTNOTES:

[3] I greatly regret having to stretch the ordinary meaning of the word
“æsthetic” to the extent required by the argument of this chapter. I
got into trouble in a previous work by the extension I gave to the word
“Authority.” And as, in that case, no explanation seemed sufficient to
avoid misconception, so I am afraid it will be in the present case.

But what better course is open to me? I require a word to express a
concept which is vital to the doctrines I am preaching. Where am I to
get it? If there is no such word in ordinary use, I must either invent
a new word, or I must modify the familiar meaning of an old word. There
are objections to both courses; yet one of them must be taken. I have
chosen the second; and can do no more than ask for the indulgence of
those readers who think I should have chosen the first.

[4] Cf. Plato in the “Phædrus.”

[5] It is perhaps to this tendency we may (in part) attribute the
eagerness with which poetry and fine art have used and abused the
personifications of natural objects provided for them by primitive
superstition. If not, it is curious that these tedious mythologies
should have been cherished by poets long after they were abandoned by
everybody else; and that we still use every expedient for endowing
material nature with fictitious sympathies and powers. But it is, I
think, an error to see nothing in such metaphors but a trick of style.
They represent the same deep-rooted tendency which finds significance
in such phrases as “Mother Earth,” which has suggested certain
poetic forms of Pantheism; or which gathers a vague, semi-spiritual
consolation from the thought that, when we die, our bodies, resolved
into their elements, may still share in the new manifestations of life
which Nature (half personified) pours out in exhaustless profusion.




LECTURE IV

ETHICS AND THEISM


I

I turn now from contemplation to action; from Æsthetics to Ethics.
And in so doing I must ask permission to stretch the ordinary meaning
of the term which I use to describe the subject-matter of the present
lecture, as I have already stretched the meaning of the term which
described the subject-matter of the last. “Æsthetics” there included
much besides beauty; “Ethics” here will include much besides morality.
As, under the first head, were ranged contemplative interests far lower
in the scale than (for example) those of art, so I shall extend the
use of the word “Ethics” till it embraces the whole range of what used
to be called the “springs of action,” from the loftiest love down to
impulses which in themselves are non-moral, instinctive, even automatic.

The grounds for this procedure are similar in both cases. I am mainly,
almost exclusively, concerned with beliefs and emotions touching
beauty and goodness. Yet it is important to remember that, considered
as natural products, these shade off by insensible gradations into
manifestations of life to which the words “belief” and “emotion” are
quite inapplicable, where “beauty” and “goodness” have little meaning
or none. And as this larger class, when concerned with action, has at
present no better name, I may be permitted to describe it as ethical.

I am mainly concerned, however, with that higher part of the ethical
scale which all would agree to call Moral, and with the debatable
region immediately below it. Of purposive action, or what seems to be
such, of a still lower type, I need say little—but we must never forget
that it is there.

Morals, as I conceive them, are concerned with ends of action: and
principally with _ultimate_ ends of action. An end of action, in so far
as it is ultimate, is one which is pursued for itself alone, and not as
a means to some other end. Of course an end may be, and constantly is,
both ultimate and contributory. It is sought for on its own account,
and also as an instrument for procuring something else. It is mainly
in the first of these capacities, however, that it concerns morality.

For the purposes of this lecture I shall classify ultimate ends as
either egoistic or altruistic—egoistic ends being those that are
immediately connected with, or centred in, the agent; altruistic
ends being those that are not. But I beg you to remember that this
distinction does not correspond to that between right and wrong. Egoism
is not necessarily vicious, nor is altruism necessarily virtuous.
Indeed, as I shall have occasion to point out later, the blackest
vices, such as cruelty and hatred, are often altruistic.

This is an unusual, though not, I think, an unreasonable, use of
language. “Egoism” and “altruism” are terms historically associated
with the moral theories which regard happiness as the only end of
action, but are under the necessity of distinguishing between actions
designed to secure the happiness of the agent and actions designed to
secure the happiness of other people. I do not accept these theories,
though I borrow their phraseology. Happiness may, or may not, be the
highest of all ultimate ends, the one to which all others should give
way. But it seems to me quite misleading to call it the only one.
To describe the sensual man, the vain man, the merely selfish man,
the miser, the ascetic, the man moved by rational self-love, the man
absorbed in the task of “self-realisation,” the man consumed by the
passion for posthumous fame, as all pursuing the same egoistic end
by different means, is surely to confuse distinctions of great moral
importance without any gain of scientific clarity. In like manner,
to suppose that the man who spends himself in the service (say) of
his family, his country, or his church, is only striving for the
“happiness” of the human race, or of certain selected members of the
human race, is (it seems to me) to ignore the plain teaching of daily
experience. As there are many egoistic ends besides our own happiness,
so there are many altruistic ends besides the happiness of others.
The extended sense, therefore, in which I employ these terms seems
justified by facts.


II

I shall not attempt to determine the point at which we can first
clearly discriminate between the “egoistic” and “altruistic” elements
in animal instinct. Evidently, however, it is anterior to and
independent of any conceptual recognition either of an _ego_ or an
_alter_. It might be argued that there is an altruistic element in the
most egoistic instincts. Eating, multiplying, fighting, and running
away—acts plainly directed towards preserving and satisfying the
individual—also conduce to the preservation of the race. But, however
this may be, the converse is certainly untrue. There are altruistic
instincts into which no element of egoism enters. Of these the most
important is parental, especially maternal, love: the most amazing
are the impulses which regulate the complex polity of (for example) a
hive of bees. In these cases one organism will work or fight or endure
for others: it will sacrifice its life for its offspring, or for the
commonwealth of which it is a member. Egoism is wholly lost in altruism.

Now, I suppose that, in the order of causation, all these animal
instincts, be they egoistic or altruistic, must be treated as
contrivances for aiding a species in the struggle for existence.
If _anything_ be due to selection, surely _these_ must be. This is
plainly true of the egoistic appetites and impulses on which depend
the maintenance of life and its propagation. It must also be true of
the altruistic instincts. Take, for instance, the case of parental
devotion. Its survival value is clearly immense. The higher animals, as
at present constituted, could not exist without it; and though, for all
we can say to the contrary, development might have followed a different
course, and a race not less effectively endowed than man might flourish
though parental care played no greater part in the life-history of its
members than it does in the life-history of a herring, yet this is
not what has actually happened. Altruistic effort, in the world as we
know it, is as essential to the higher organisms as the self-regarding
instincts and appetites are to organic life in general; and there seems
no reason for attributing to it a different origin.

Can this be said with a like confidence about the higher portions of
the ethical scale? Are these also due to selection?

Evidently the difference between primitive instincts and developed
morality is immense; and it is as great in the egoistic as in the
non-egoistic region of ethics. Ideals of conduct, the formulation of
ends, judgments of their relative worth, actions based on principles,
deliberate choice between alternative policies, the realised
distinction between the self and other personalities or other centres
of feeling— all these are involved in developed morality, while in
animal ethics they exist not at all, or only in the most rudimentary
forms.

Compare, for instance, a society of bees and a society of men. In both
there is division of labour; in both there is organised effort towards
an end which is other and greater than the individual good of any
single member of the community. But though there are these deep-lying
resemblances between the two cases, how important are the differences
which divide them! In the bee-hive altruism is obeyed, but not chosen.
Alternative ends are not contrasted. No member of the community thinks
that it could do something different from, and more agreeable than, the
inherited task. Nor in truth could it. General interest and individual
interest are never opposed, for they are never distinguished. The agent
never compares, and therefore never selects.

Far different are the ethical conditions requiring consideration
when we turn from bees to men. Here egoism and altruism are not only
distinguished in reflection; they may be, and often are, incompatible
in practice. Nor does this conflict of ends only show itself _between_
these two great ethical divisions; it is not less apparent _within_
them. Here, then, we find ourselves in a world of moral conflict very
faintly foreshadowed in animal ethics. For us, ultimate ends are many.
They may reinforce each other, or they may weaken each other. They may
harmonise, or they may clash. Personal ends may prove incompatible with
group ends: one group end may prove incompatible with another. Loyalty
may be ranged against loyalty, altruism against altruism; nor is there
any court of appeal which can decide between them.

But there are yet other differences between the ethics of instinct
and the ethics of reflection. Instincts are (relatively) definite and
stable; they move in narrow channels; they cannot easily be enlarged
in scope, or changed in character. The animal mother, for example,
cares for its young children, but never for its young grandchildren.
The lifelong fidelity of the parent birds in certain species (a
fidelity seemingly independent of the pairing season, or the care of
particular broods) never becomes the nucleus of a wider association.
Altruistic instincts may lead to actions which equal, or surpass,
man’s highest efforts of abnegation; but the actions are matters of
routine, and the instincts never vary. They emerge in the same form at
the same stage of individual growth, like any other attribute of the
species—its colour, for instance, or its claws. And if they be, like
colour and claws, the products of selection, this is exactly what we
should expect. But then, if the loyalties of man be also the product of
selection, why do they not show a similar fixity?

Plainly they do _not_. Man inherits the capacity for loyalty, but not
the use to which he shall put it. The persons and causes (if any) to
which he shall devote himself are suggested to him, often, indeed,
imposed upon him, by education and environment. Nevertheless, they are
his by choice, not by hereditary compulsion. And his choice may be bad.
He may unselfishly devote himself to what is petty or vile, as he may
to what is generous and noble. But on the possibility of error depends
the possibility of progress; and if (to borrow a phrase from physics)
our loyalty possessed as few “degrees of freedom” as that of ants or
bees, our social organisation would be as rigid.

The most careless glance at the pages of history, or the world of
our own experience, will show how varied are the forms in which this
capacity for loyalty is displayed. The Spartans at Thermopylæ,
the “Blues” and the “Greens” at Byzantium, rival politicians in a
hard-fought election, players and spectators at an Eton and Harrow
Match, supply familiar illustrations of its variety and vigour. And do
not suppose that in thus bringing together the sublime, the familiar,
and the trivial, I am paradoxically associating matters essentially
disparate. This is not so. I am not putting on a moral level the
patriot and the partisan, the martyr to some great cause and the
shouting spectator at a school match. What I am insisting on is that
they all have loyalty in common; a loyalty which often is, and always
may be, pure from egoistic alloy.

Loyalties, then, which are characteristically human differ profoundly
from those which are characteristically animal. The latter are due to
instincts which include both the end to be sought for and the means by
which it is to be attained. The former are rooted in a general capacity
for, or inclination to, loyalty, with little inherited guidance either
as to ends or means. Yet, if we accept selection as the source of
the first, we can hardly reject it as the source of the second. For
the survival value of loyalty is manifest. It lies at the root of
all effective co-operation. Without it the family and tribe would be
impossible; and without the family and the tribe, or some yet higher
organisation, men, if they could exist at all, would be more helpless
than cattle, weak against the alien forces of nature, at the mercy of
human foes more capable of loyalty than themselves. A more powerful aid
in the struggle for existence cannot easily be imagined.

We are indeed apt to forget how important are its consequences, even
when it supplies no more than a faint qualification of other and more
obvious motives. It acts like those alloys which, in doses relatively
minute, add strength and elasticity even to steel. The relation (for
example) between a commercial company and its officials is essentially
a business one. The employer pays the market price for honesty and
competence, and has no claim to more. Yet that company is surely either
unfortunate or undeserving whose servants are wholly indifferent to
its fortunes, feeling no faintest flicker of pride when it succeeds,
no tinge of regret when it fails. Honourable is the tie between those
who exchange honest wage and honest work; yet loyalty can easily better
it. And a like truth is manifest in spheres of action less reputable
than those of commerce. Mercenaries, to be worth hiring, must be partly
moved by forces higher than punishment or pay. Even pirates could not
plunder with profit were their selfishness unredeemed by some slight
tincture of reciprocal loyalty.

There are, however, many who would admit the occasional importance of
loyalty while strenuously denying that social life was wholly based
upon it. For them society is an invention; of all inventions the most
useful, but still only an invention. It was (they think) originally
devised by individuals in their individual interest; and, though
common action was the machinery employed, personal advantage was the
end desired. By enlightened egoism social organisation was created;
by enlightened egoism it is maintained and improved. Contrivance,
therefore, not loyalty, is the master faculty required.

This is a great delusion—quite unsupported by anything we know or can
plausibly conjecture about the history of mankind. No one, indeed,
doubts that deliberate adaptation of means to ends has helped to
create, and is constantly modifying, human societies; nor yet that
egoism has constantly perverted political and social institutions to
merely private uses. But there is something more fundamental to be
borne in mind, namely, that without loyalty there would be no societies
to modify, and no institutions to pervert. If these were merely
well-designed instruments like steam-engines and telegraphs, they would
be worthless. They would perish at the first shock, did they not at
once fall into ruin by their own weight. If they are to be useful as
means, they must first impose themselves as ends; they must possess
a quality beyond the reach of contrivance: the quality of commanding
disinterested service and uncalculating devotion.


III

I should therefore be ready to admit, as a plausible conjecture, that
the capacity for altruistic emotions and beliefs is a direct product
of organic evolution; an attribute preserved and encouraged, because
it is useful to the race, and transmitted from parents to offspring
by physiological inheritance. On this theory loyalty in some shape
or other is as natural to man as maternal affection is natural to
mammals. Doubtless it is more variable in strength, more flexible in
direction, more easily smothered by competing egoisms; but the capacity
for it is not less innate, and not less necessary in the struggle for
existence. But when we ask how far selection has been responsible for
the development of high altruistic ideals out of primitive forms of
loyalty, we touch on problems of much greater complexity. Evidently
there has been a profound moral transformation in the course of ages.
None suppose that ethical values are appraised in the twentieth century
as they were in the first stone age. But what has caused the change is
not so clear.

There are obvious, and, I think, insurmountable difficulties in
attributing it to organic selection. Selection is of the fittest—of
the fittest to survive. But in what consists this particular kind of
fitness? The answer from the biological point of view is quite simple:
almost a matter of definition. That race is “fit” which maintains
its numbers; and that race is fittest which most increases them. The
judge of such “fitness” is not the moralist or the statesman. It is
the Registrar-General. So little is “fitness” inseparably attached to
excellence, that it would be rash to say that there is any quality,
however unattractive, which might not in conceivable circumstances
assist survival. High authorities, I believe, hold that at this moment
in Britain we have so managed matters that congenital idiots increase
faster than any other class of the population. If so, they must be
deemed the “fittest” of our countrymen. No doubt this fact, if it be
a fact, is an accident of our social system. Legislation has produced
this happy adaptation of environment to organism, and legislation might
destroy it. The fittest to-day might become the unfittest to-morrow.
But this is nothing to the purpose. That part of man’s environment
which is due to man does no doubt usually vary more quickly than the
part which is due to nature; none the less is it environment in the
strictest sense of the word. The theory of selection draws no essential
distinction between (say) the secular congelation of a continent in
the ice age, and the workings of the English Poor Law in the twentieth
century. It is enough that each, while it lasts, favours or discourages
particular heritable variations, and modifies the qualities that make
for “survival.”

What is more important, however, than the fact that heritable “fitness”
may be completely divorced from mental and moral excellence, is the
fact that so large a part of man’s mental and moral characteristics are
not heritable at all, and cannot therefore be directly due to organic
selection. Races may accumulate accomplishments, yet remain organically
unchanged. They may learn and they may forget, they may rise from
barbarism to culture, and sink back from culture to barbarism, while
through all these revolutions the raw material of their humanity
varies never a bit. In such cases there can be no question of Natural
Selection in the sense in which biologists use the term.

And there are other considerations which suggest that, as development
proceeds, the forces of organic selection diminish. While man was in
the making we may easily believe that those possessing no congenital
instinct for loyalty failed, and that failure involved elimination.
In such circumstances, the hereditary instinct would become an
inbred characteristic of the race. But in a civilised, or even in
a semi-civilised, world, the success of one competitor has rarely
involved the extinction of the other—at least by mere slaughter. When
extinction has followed defeat, it has been due rather to the gradual
effects of disease and hardship, or to other causes more obscure, but
not less deadly. The endless struggles between tribes, cities, nations,
and races, have in the main been struggles for domination, not for
existence. Slavery, not death, has been the penalty of failure; and
if domination has produced a change in the inherited type, it is not
because the conquered has perished before the conqueror, but because,
conquest having brought them together, the two have intermarried.
There is thus no close or necessary connection between biological
“fitness” and military or political success. The beaten race, whose
institutions or culture perish, may be the race which in fact survives;
while victors who firmly establish their language, religion, and polity
may, after a few centuries, leave scarce a trace behind them of any
heritable characteristics which the anthropologist is able to detect.

This observation, however, suggests a new point. Is there not, you may
ask, a “struggle for existence” between non-heritable acquirements
which faintly resembles the biological struggle between individuals
or species? Religious systems, political organisations, speculative
creeds, industrial inventions, national policies, scientific
generalisations, and (what specially concerns us now) ethical ideals,
are in perpetual competition and conflict. Some maintain themselves
or expand. These are, by definition, the “fit.” Some wane or perish.
These are, by definition, the unfit. Here we find selection, survival,
elimination; and, though we see them at work in quite other regions of
reality than those explored by the student of organic evolution, the
analogy between the two cases is obvious.

But is the analogy more than superficial? Is it relevant to our present
argument? Can it explain either the spread of higher moral ideals or
their development? Let us consider for a moment some examples of this
psychological “struggle for existence.” Take, as a simple case, the
competition between rival inventions—between the spinning-jenny and the
hand-loom, the breech-loader and the muzzle-loader, pre-Listerian and
post-Listerian methods of surgery. Unless the environment be strongly
charged with prejudice, ignorance, or sinister interests, the “fittest”
in such cases is that which best serves its purpose. Measurable
efficiency is the quality which wins. But this supplies us with no
useful analogy when we are dealing with ethics. Morality, as I have
already insisted, is not an invention designed to serve an external
purpose. The “struggle for existence” between higher and lower ethical
ideals has no resemblance to the struggle between the spinning-jenny
and the hand-loom. It is a struggle between ends, not between means.
Efficiency is not in question.

A like observation applies to that quality of our beliefs which might
be described as “argumentative plausibility.” This is to abstract
theorising what efficiency is to practical invention. It has survival
value. Both, of course, are relative terms, whose application varies
with circumstances. An invention is only efficient while the commodity
it produces is in demand. A theory is only plausible while it hits off
the intellectual temper of the day. But if efficiency and plausibility
be thus understood, the more efficient invention and the more plausible
doctrine will oust their less favoured rivals. They are the “fittest.”
But as morality is not a means, so neither is it a conclusion. Whatever
be its relation to Reason, _reasoning_ can never determine the
essential nature of its contents. Plausibility, therefore, is no more
in question than efficiency.

I do not, of course, deny that ethics are always under discussion,
or that the basis of moral rules and their application are themes of
unending controversy. This is plainly true. But it is also true that
there is no argumentative method of shaking any man’s allegiance to
an end which he deems intrinsically worthy, except by showing it to
be inconsistent with some other end which _he_ (not you) deems more
worthy still. Dialectic can bring into clear consciousness the implicit
beliefs which underlie action, but it cannot either prove them or
refute them. It is as untrue to say that there is no disputing about
morals as to say that there is no disputing about tastes. But also it
is as true; and the truth, properly understood, is fundamental.

What pass for opposing arguments are really rival appeals; and it is
interesting to observe that the appeal which, to the unreflecting,
seems the most rational is the appeal to selfishness. I am told[6]
that on any fine Sunday afternoon in some of our big towns you may
find an orator asking why any man should love his country. “What,”
he inquires, “does a man get by it? Will national success bring
either to himself or to any of his hearers more food, more drink, more
amusements? If not, why make personal sacrifices for what will never
confer personal advantage?” To this particular question it might be
replied (though not always with truth) that the antithesis is a false
one, and that on the whole the selfish ideal and the patriotic ideal
are both promoted by the same policy of public service. But there is
another question of the same type to which no such answer is possible.
We have all heard it, either in jest or in earnest. “Why” (it is asked)
“should we do anything for posterity, seeing that posterity will do
nothing for us?” The implication is infamous, but the statement is
true. We cannot extract from posterity an equivalent for the sacrifices
we make on its behalf. These are debts that will never be recovered.
The unborn cannot be sued; the dead cannot be repaid. But what then?
Altruism is not based on egoism; it is not egoism in disguise. The ends
to which it points are ends in themselves; and their value is quite
independent of argument, neither capable of proof nor requiring it.

In what, then, consists the psychological (as distinguished from
the organic) “fitness” of the higher moral ideals? If it cannot be
found in their practical efficiency, nor yet in their argumentative
plausibility, where shall we seek it?

Sometimes, no doubt, the explanation is to be found in their
association with a culture, other elements of which do possess both
these kinds of “fitness.” Thus Western morality—or (to be accurate)
Western notions of morality—find favour with backward races, because
they are associated with Western armaments and Western arts. Again,
they may be diffused, perhaps as part of some militant religion, by the
power of the sword or by its prestige. They reach new regions in the
train of a conqueror, and willingly or unwillingly the conquered accept
them.

But these associations are seemingly quite casual. The prestige of
Western arts and science may assist the diffusion of Western morals,
as it assists the diffusion of Western languages, or Western clothes.
Conquests by Mahommedan or Christian States may substitute a higher
for a lower ethical creed in this or that region of the world. Such
cases, however, leave us still in the realm of accident. The causes
thus assigned for the spread of a particular type of ethical ideal
have nothing to do with the quality of that type. They would promote
bad morals not less effectively than good; as a hose will, with equal
ease, scatter dirty water or clean. Moreover, the growth of the higher
type in its place of origin is left wholly unexplained. Its “fitness”
seems a mere matter of luck due neither to design nor to any natural
imitation of design.

The rigour of this conclusion would be little mitigated even if
we could connect psychological fitness with some quite non-moral
peculiarity habitually associated with the higher morality, but not
with the lower. If, for example, the former were found to lead normally
to worldly success, its repute would need no further explanation. If,
in private life, those endowed with Sir Charles Grandison’s merits
usually possessed Sir Charles Grandison’s estate, if, in political or
national life, victory and virtue went ever hand in hand, morality
might be none the better, but certainly it would be more the fashion.
Heaven would be wearied with prayers for an unselfish spirit, uttered
by suppliants from purely selfish motives. Saints would become the
darlings of society, and the book of Job would be still unwritten.[7]

I can devise no more extravagant hypothesis. But though, if it were
true, the “fitness” of the higher morality might seem to have found an
explanation, it is not the explanation we require. It is too external.
It gives no account of the appeal which the nobler ends of action make
to our judgments of intrinsic value. It suggests the way in which a
higher ideal might increase the number of its possessors at the expense
of a lower, but not the way in which the higher ideal might itself
arise. Indeed, we must go further. Few are the moralists who would
maintain that indifference to worldly triumphs was not, on the whole,
a bar to their attainment. Few are the biologists who would maintain
that care and kindness, lavished on the biologically unfit, will never
tend to diminish the relative number of the biologically fit. But,
if so, we must agree with Nietzsche in thinking that ethical values
have become “denaturalised.” In their primitive forms the products of
selection, they have, by a kind of internal momentum, overpassed their
primitive purpose. Made by nature for a natural object, they have
developed along lines which are certainly independent of selection,
perhaps in opposition to it. And though not as remote from their first
manifestations as is the æsthetic of men from the æsthetic of monkeys,
no evolutionary explanation will bridge the interval. If we treat
the Sermon on the Mount as a naturalistic product, it is as much an
evolutionary accident as _Hamlet_ or the Ninth Symphony.


IV

In what setting, then, are we to place morality so that these
“denaturalised” values may be retained? Can we be content to regard
the highest loyalties, the most devoted love, the most limitless
self-abnegation as the useless excesses of a world-system, which in its
efforts to adapt organism to environment has overshot its mark?

I deem it impossible. The naturalistic setting must be expanded into
one which shall give the higher ethics an origin congruous with their
character. Selection must be treated as an instrument of purpose,
not simply as its mimic. Theistic teleology must be substituted for
Naturalism. Thus, and thus only, can moral values, as it seems to me,
be successfully maintained.

This would not, I suppose, have been denied by Nietzsche and
Nietzsche’s predecessors in revolt. On the contrary, they would admit
the interdependence of morals and religion, as these are commonly
understood in Christendom, and they would condemn both. It would,
however, have been vehemently denied by agnostics like Huxley; for
Huxley accepted, broadly speaking, Christian ethics, while refusing to
accept the Christian, or, indeed, any other form of theology.

In my opinion, this position is not permanently tenable. I do not mean
that it involves a logical contradiction. I do mean that it involves
an emotional and doctrinal incompatibility of a very fundamental
kind. And this is a defect which may be even more fatal than logical
contradiction to the stability of ethical beliefs.

For what was Huxley’s position? His condemnation of evolutionary ethics
was far more violent than my own. He states categorically that “What
is ethically best involves conduct which in all respects is opposed
to that which leads to success in the cosmic struggle for existence.”
On a biological question I differ from him with misgiving; but, as
I have already urged, selection may plausibly be credited with the
earlier stages of the noblest virtues. I cannot think that the mother
who sacrifices herself for her child, the clansman who dies for his
chief, the generation which suffers for the sake of its posterity,
are indulging in “conduct which is in all respects opposed to that
which leads to success in the cosmic struggle for existence.” But,
whether Huxley be right on this point or I, it is surely impossible
for the mass of mankind to maintain, at the cost of much personal
loss, an ideal of conduct which science tells us is not merely an
evolutionary accident, but an evolutionary mistake; something which
was, and is, contrary to the whole trend of the cosmic process which
brought us into being, and made us what we are. It requires but a small
knowledge of history to show how easily mankind idealises nature;
witness such phrases as “the return to nature,” the “state of nature,”
“natural rights,” “natural law,” and so forth. Appeals founded upon
these notions have proved powerful, even when they ran counter to
individualistic selfishness. When the two are in alliance, how can they
be resisted? Is it possible for the ordinary man to maintain undimmed
his altruistic ideals if he thinks Nature is against them?—unless,
indeed he also believes that God is on their side?


V

Here are questions raised to which there is no parallel in the case
of æsthetics. Doubtless differences of æsthetic judgment abound; but
they do not produce difficulties quite matching those due to the
collision of incompatible ends; nor is their solution so important. On
this subject I must say a few words before bringing this lecture to a
conclusion.

Possible collisions between ends are many, for ends themselves
are many. And of these ends some are in their very nature
irreconcilable;—based on essential differences which reflection only
makes more apparent, and moral growth more profound.

Now these collisions are not always between altruism and egoism.
Often they are between different forms of altruism—call them, if you
please, the positive form and the negative. Enmity, hate, cruelty,
tyranny, and all that odious brood whose end and object is the pain
and abasement of others are not intrinsically egoistic. Though they be
the vilest of all passions, yet they do not necessarily involve any
taint of selfish alloy. Often as disinterested as the most devoted
love or the most single-minded loyalty, they may demand no smaller
sacrifices on the part of those whom they inspire, and the demand may
be not less willingly obeyed. It is, perhaps, worth observing that
these altruistic ends, the positive and the negative, the benevolent
and the malevolent, irreconcilably opposed as they are in moral theory,
have often been associated in ethical practice. Family affection has in
many half-civilised communities produced the binding custom of family
vendetta. Political loyalty, which has blossomed into some of the
noblest forms of positive altruism, has also bred cruelty and hatred
against those who are outside the pale of the tribe, the state, the
party, or the creed. The brightest light has cast the deepest shadows.
To torture and enslave, not because it brings profit to the victor, but
because it brings pain to the vanquished, has, through long ages, been
deemed a fitting sequel to victories born of the most heroic courage
and the noblest self-sacrifice; while no small part of moral progress
has consisted in expelling this perverted altruism from the accepted
ideals of civilised mankind.

Egoism is far more reputable. The agent’s own good, considered
in itself, is, what negative altruism can never be, a perfectly
legitimate object of endeavour. When, therefore, there is a collision
between egoism and positive altruism, problems of real difficulty
may arise; the competing ends may both have value, and the need for
a reconciliation, practical as well as speculative, of necessity
impresses both moralists and legislators.

In practice the evils of this conflict arise largely from the fact
that the end which has most worth has too often least power. This
is not surprising if the account of ethical evolution, which I have
provisionally adopted in this lecture, be near the truth. For the
extra-regarding instincts are of later birth than the self-regarding.
All animals look after themselves. Only the more developed look also
after others. The germ of what, in reflection, becomes egoism is of far
earlier growth than the germ of what, in reflection, becomes altruism.
Being more primitive, it is more deeply rooted in our nature; and, even
when recognised as morally lower, it tends, when there is conflict, to
prevail over its rival. “The evil that I would not, that I do.”

Now this result has, as we all know, serious social consequences. Even
the least stable society must be organised on some firm framework
of custom, rule, and law; and these, in their turn, must find their
main support in the willing loyalty of the general community.
But, though loyalty is the great essential, it is not sufficient.
Legislators, lawyers, moralists, all agree that in the collision
between ends—especially between egoistic and altruistic ends—it is
not always the highest end as judged by the agent himself, still less
the highest end as measured by the standards of the community, which
finally prevails. Therefore must law and custom have the support of
sanctions: sanctions being nothing else than devices for bringing a
lower motive to the aid of a higher, and so producing better conduct,
if not[8] better morals. Public approval and disapproval, the jailer
and the hangman, heaven and hell, are familiar examples. Can they in
any true sense effect a reconciliation between discordant ends, and,
in particular, between altruism and egoism? I hardly think so. When
they are effective they doubtless diminish ethical conflict; but it
is by ignoring the intrinsic value of one set of ethical ends. In so
far as we are honest because honesty is the best policy, in so far as
we do not injure lest we should ourselves be injured, in so far as we
benefit that we may be benefited ourselves—just in that proportion we
treat altruistic actions merely as the means of attaining egoistic
ends. The two competitors are not reconciled, but a working arrangement
is reached under which the conduct appropriate to the higher ideal is
pursued from motives characteristic of the lower.

Is any truer reconciliation possible? Scarcely, as I think, without
religion. I do not suggest that _any_ religious theory gets rid of
ethical anomalies, or theoretically lightens by a feather-weight the
heavy problem of evil. But I do suggest that in the love of God by
the individual soul, the collision of ends _for that soul_ loses all
its harshness, and harmony is produced by raising, not lowering, the
ethical ideal.

Kant, by a famous feat of speculative audacity, sought to extract a
proof of God’s existence from the moral law. In his view the moral law
requires us to hold that those who are good will also in the end be
happy; and, since without God this expectation cannot be fulfilled,
the being of God becomes a postulate of morality. Is this (you may
ask), or any variant of this, the argument suggested in the last
paragraph? It is not. In Kant’s argument, as I understand it, God was
external to morality in the sense that He was not Himself a moral
end. It was not our feeling of love and loyalty to Him that was of
moment, but His guidance of the world in the interests of virtue and
the virtuous. My point is different. I find in the love of God a moral
end which reconciles other moral ends, because it includes them. It
is not intolerant of desires for our own good. It demands their due
subordination, not their complete suppression. It implies loyal service
to One who by His essential nature wills the good of all. It requires,
therefore, that the good of all shall be an object of our endeavour;
and it promises that, in striving for this inclusive end, we shall, in
Pauline phrase, be fellow-workers with Him.

I will not further pursue this theme. Its development is plainly
inappropriate to these lectures, which are not directly concerned with
personal religion. In any case, this portion of my argument, though
important, is subsidiary. My main contention rests, not upon the
difficulty of harmonising moral ends in a Godless universe, but upon
the difficulty of maintaining moral values if moral origins are purely
naturalistic. That they never have been so maintained on any large
scale is a matter of historic fact. At no time has the mass of mankind
treated morals and religion as mutually independent. They have left
this to the enlightened; and the enlightened have (as I think) been
wrong.

They have been wrong through their omission to face the full results of
their own theories. If the most we can say for morality on the causal
side is that it is the product of non-moral, and ultimately of material
agents, guided up to a certain point by selection, and thereafter left
the sport of chance, a sense of humour, if nothing else, should prevent
us wasting fine language on the splendour of the moral law and the
reverential obedience owed it by mankind. That debt will not long be
paid if morality comes to be generally regarded as the causal effect
of petty causes; comparable in its lowest manifestations with the
appetites and terrors which rule, for their good, the animal creation;
in its highest phases no more than a personal accomplishment, to be
acquired or neglected at the bidding of individual caprice. More than
this is needful if the noblest ideals are not to lose all power of
appeal. Ethics must have its roots in the divine; and in the divine it
must find its consummation.


FOOTNOTES:

[6] Written in 1913.

[7] Doubtless under such circumstances ideal virtue might also have
survival value in the biological sense.

[8] Indirectly, no doubt, sanctions may perform a most important
educational work in stimulating and guiding the higher loyalties. The
approval or disapproval of our fellows, the “terrors of the law,” the
belief in future rewards and punishments, though their immediate appeal
is only to self-interest, may powerfully aid in the creation of moral
judgments sufficiently free from any “empirical elements of desire” to
have satisfied Kant himself.




PART III

_INTELLECTUAL VALUES_




LECTURE V

INTRODUCTION TO PART III


I

In the preceding lectures I have given reasons for thinking that in two
great departments of human interest—Æsthetics and Ethics—the highest
beliefs and emotions cannot claim to have any survival value. They
must be treated as by-products of the evolutionary process; and are,
therefore, on the naturalistic hypothesis, doubly accidental. They are
accidental in the larger sense of being the product of the undesigned
collocation and interplay of material entities—molecular atoms,
sub-atoms, and ether—which preceded, and will presumably outlast,
that fraction of time during which organic life will have appeared,
developed, and perished. They are also accidental in the narrower sense
of being only accidentally associated with that process of selective
elimination, which, if Darwinism be true, has so happily imitated
contrivance in the adaptation of organisms to their environment. They
are the accidents of an accident.

I disagreed with this conclusion, but I did not attempt to refute it. I
contented myself with pointing out that it was destructive of values;
and that, the greater the values, the more destructive it became.
The difficulty, indeed, on which I have so far insisted is not a
logical one. We have not been concerned with premises and conclusions.
Neither our æsthetic emotions nor our moral sentiments are the product
of ratiocination; nor is it by ratiocination that they are likely
to suffer essential wrong. If you would damage them beyond repair,
yoke them to a theory of the universe which robs them of all general
significance. Then, at the very moment when they aspire to transcendent
authority, their own history will rise up in judgment against them,
impugning their pretensions, and testifying to their imposture.


II

The inquiry on which I now propose to enter will follow a more or less
parallel course, and will reach a more or less similar conclusion.
Yet some characteristic differences it must necessarily exhibit.
In the higher regions of æsthetics and ethics, emotions and beliefs
are inextricably intertwined. They are what naturalists describe as
“symbiotic.” Though essentially different, they are mutually dependent.
If one be destroyed, the other withers away.

But Knowledge—the department of human interest to which I now turn—is
differently placed. The values with which we shall be concerned are
mainly rational; and intellectual curiosity is the only emotion
with which they are associated. Yet here also two questions arise
corresponding to those which we have already dealt with in a different
connection: (1) what are the causes of our knowledge, or of that part
of our knowledge which concerns the world of common sense and of
science? (2) does the naturalistic account of these causes affect the
rational value—in other words the validity—of their results?

We are, perhaps, more sensitive about the pedigree of our intellectual
creed than we are about the pedigree of our tastes or our sentiments.
We like to think that beliefs which claim to be rational are the
product of a purely rational process; and though, where others are
concerned, we complacently admit the intrusion of non-rational links
in the causal chain, we have higher ambitions for ourselves.

Yet surely, on the naturalistic theory of the world, all such ambitions
are vain. It is abundantly evident that, however important be the part
which reason plays among the immediate antecedents of our beliefs,
there are no beliefs which do not trace back their origin to causes
which are wholly irrational. Proximately, these beliefs may take rank
as logical conclusions. Ultimately, they are without exception rooted
in matter and motion. The rational order is but a graft upon the causal
order; and, if Naturalism be true, the causal order is blind.


III

Before I further develop this line of speculation it may help you to
understand what I am driving at if I venture upon an autobiographical
parenthesis. The point I have just endeavoured to make I have made
before in these lectures, and I have made it elsewhere. It is one
of a number of considerations which have led me to question the
prevalent account of the theoretical ground-work of our accepted
beliefs. Taken by itself, its tendency is sceptical; and, since it
has been associated with arguments in favour of a spiritual view
of the universe, I have been charged (and not always by unfriendly
commentators) with the desire to force doubt into the service of
orthodoxy by recommending mankind to believe what they wish, since all
beliefs alike are destitute of proof. As we cannot extricate ourselves
from the labyrinth of illusion, let us at least see to it that our
illusions are agreeable.

This, however, is not what I have ever wanted to say, nor is it what I
want to say now. If I have given just occasion for such a travesty of
my opinions, it must have been an indirect consequence of my early, and
no doubt emphatically expressed, contempt for the complacent dogmatism
of the empirical philosophy, which in Great Britain reigned supreme
through the third quarter of the nineteenth century. But was this
contempt altogether unreasonable?

I went to Cambridge in the middle sixties with a very small equipment
of either philosophy or science, but a very keen desire to discover
_what_ I ought to think of the world, and _why_. For the history
of speculation I cared not a jot. Dead systems seemed to me of no
more interest than abandoned fashions. My business was with the
ground-work of living beliefs; in particular, with the ground-work of
that scientific knowledge whose recent developments had so profoundly
moved mankind. And surely there was nothing perverse in asking modern
philosophers to provide us with a theory of modern science!

I was referred to Mill; and the shock of disillusionment remains with
me to the present hour. Mill possessed at that time an authority in
the English Universities, and, for anything I know to the contrary,
in the Scotch Universities also, comparable to that wielded forty
years earlier by Hegel in Germany and in the Middle Ages by Aristotle.
Precisely the kind of questions which I wished to put, his Logic was
deemed qualified to answer. He was supposed to have done for scientific
inference what Bacon tried to do, and failed. He had provided science
with a philosophy.

I could have forgiven the claims then made for him by his admirers;
I could have forgiven, though young and intolerant, what seemed to
me the futility of his philosophic system, if he had ever displayed
any serious misgiving as to the scope and validity of his empirical
methods. If he had admitted, for example, that, when all had been done
that could be done to systematise our ordinary modes of experimental
inference, the underlying problem of knowledge still remained unsolved.
But he seemed to hold, in common with the whole empirical school
of which, in English-speaking countries, he was the head, that the
fundamental difficulties of knowledge do not begin till the frontier is
crossed which divides physics from metaphysics, the natural from the
supernatural, the world of “phenomena” from the world of “noumena,”
“positive” experiences from religious dreams. It may be urged that, if
these be errors, they are errors shared by ninety-nine out of every
hundred persons educated in the atmosphere of Western civilisation,
whatever be their theological views: and I admit that it has sunk deep
into our ordinary habits of thought. Apologetics are saturated with
it, not less than agnosticism or infidelity. But, for my own part, I
feel now, as I felt in the early days of which I am speaking, that
the problem of knowledge cannot properly be sundered in this fashion.
Its difficulties begin with the convictions of common sense, not with
remote, or subtle, or otherworldly speculations; and if we could
solve the problem in respect of the beliefs which, roughly speaking,
everybody shares, we might see our way more clearly in respect of the
beliefs on which many people are profoundly divided.

That Mill’s reasoning should have satisfied himself and his immediate
disciples is strange. But that the wider public of thinking men, whom
he so powerfully influenced, should on the strength of this flimsy
philosophy adopt an attitude of dogmatic assurance both as to what can
be known and what cannot, is surely stranger still. Thus, at least, I
thought nearly half a century ago, and thus I think still.

Consider, for example, a typical form of the ordinary agnostic
position: that presented by Leslie Stephen. The best work of this
excellent writer was biographical and literary; but he was always
deeply interested in speculation; and his own creed seems early to have
taken its final shape under the philosophical influences of the British
empiricists. He regarded the “appeal to experience” as the fundamental
dogma of agnosticism, and by the “appeal to experience” he meant what
Mill meant by it. He sincerely supposed that this gave you indisputable
knowledge of “phenomena,” and that if you went beyond “phenomena” you
were dreaming, or you were inventing.

This is a possible creed; and it is, in fact, the creed held
implicitly, or explicitly, by many thousands of quite sensible people.
But why should those who hold it suppose that it must always satisfy
impartial inquirers? Why should they assume that those who reject it
are sacrificing their reason to their prejudices or their fancies? It
may represent the best we can do, but is it, after all, so obviously
reasonable? On this subject the empirical agnostic has no doubts. He
holds, with unshaken confidence, that nothing deserves to be believed
but that which in the last resort is proved by “experience”; that the
strength of our beliefs should be exactly proportioned to the evidence
which “experience” can supply, and that every one knows or can discover
exactly what this evidence amounts to. Leslie Stephen refers to a
well-known aphorism of Locke, who declared that “there is one unerring
mark by which a man may know whether he is a lover of truth in earnest,
viz. the not entertaining any proposition with greater assurance than
the proofs it is built on will warrant.” Upon which Leslie Stephen
observes that the sentiment is a platitude, but, in view of the
weakness of human nature, a useful platitude.

Is it a platitude? Did Locke act up to it? Did Hume act up to it, or
any other of Leslie Stephen’s philosophic progenitors? Does anybody
act up to it? Does anybody sincerely try to act up to it?

Read through the relevant chapters in Locke’s Essay, and observe
his ineffectual struggles, self-imprisoned in the circle of his own
sensations and ideas, to reach the external world in which he believed
with a far “greater assurance” than was warranted by any proofs which
_he_, at all events, was able to supply. Read Hume’s criticism of our
grounds for believing in a real world without, or a real self within,
and compare it with his admission that scepticism on these subjects is
a practical impossibility.

But we need not go beyond the first chapter of “An Agnostic’s Apology”
to find an illustration of my argument. Leslie Stephen there absolves
himself from giving heed to the conclusions of philosophers, because
there are none on which all philosophers are agreed, none on which
there is even a clear preponderance of opinion. On the other hand,
he is ready to agree with astronomers, because astronomers, “from
Galileo to Adams and Leverrier,” substantially agree with each other.
Agreement among experts is, in his opinion, a guarantee of truth, and
disagreement a proof of error.

But then he forgets that these distressing differences among
philosophers do not touch merely such entities as God and the soul, or
the other subjects with which agnostics conceive man’s faculties are
incapable of dealing. They are concerned (among other things) with the
presuppositions on which our knowledge of “phenomena”—including, of
course “astronomy from Galileo to Adams and Leverrier,” is entirely
constructed. What, in these circumstances, is Locke’s “sincere lover
of truth” to do? How is he to avoid “entertaining propositions with
greater assurance than the proofs they are built on will warrant”?
Where will he find a refuge from the “pure scepticism” which is, in
Leslie Stephen’s opinion, the natural result of divided opinions? How
is he to get on while he is making up his mind whether any theory of
the world within his reach will satisfy unbiased reason?

The fact is that the adherents of this philosophic school apply,
quite unconsciously, very different canons of intellectual probity to
themselves and to their opponents. “Why,” asks Mr. Stephen, “should
a lad who has just run the gauntlet of examination and escaped to a
country parsonage be dogmatic?” If to be dogmatic is to hold opinions
with a conviction in excess of any reason that can be assigned for
them, there seems to be no escape for the poor fellow. The common lot
of man is not going to be reversed for him. Though he abandon his
parsonage and renounce his Church, though he scrupulously purify his
creed from every taint of the “metempirical,” though he rigidly confine
himself to themes which his critics declare to be within the range of
his intellectual vision, fate will pursue him still. He may argue much
or argue little; he may believe much or believe little; but, however
much he argues and however little he believes, his beliefs will always
transcend his arguments, and to faith, in his own despite, he must
still appeal.

Those who accept Leslie Stephen’s philosophy suppose that for this
young man, as for all others, a way of escape may be found by appealing
to experience. But surely none are so sanguine as to suppose that,
by appealing to experience, they are going to avoid what Mr. Stephen
describes as “endless and hopeless controversies.” Alas, this is not
so! The field of experience is no well-defined and protected region
under whose clear skies useful knowledge flourishes unchallenged, while
the mist-enshrouded territories of its metaphysical neighbours are
devastated by unending disputations. On the contrary, it is the very
battlefield of philosophy, the cockpit of metaphysics, strewn with
abandoned arguments, where every strategic position has been taken
and retaken, to which every school lays formal claim, which every
contending system pretends to hold in effective occupation. Indeed, by
a singular irony, the thinkers who, at this particular moment, talk
most about experience are those metaphysicians of the Absolute in
whose speculations Mr. Stephen saw no beginning of interest, except
that of being (as he supposed) at once the refuge and the ruin of
traditional religion. But these philosophers have no monopoly. All men
nowadays speak well of experience. They begin to differ only when they
attempt to say what experience is, to define its character, explain its
credentials, and expound its message. But, unhappily, when this stage
is reached their differences are endless.


IV

I am, of course, not concerned with Mr. Stephen except as a brilliant
representative of a mode of thought to which I most vehemently object.
I do not object to it merely because it is in my judgment insufficient
and erroneous, still less because I dislike its conclusion. I object
to it because it talks loudly of experience, yet never faces facts;
and boasts its rationality, yet rarely reasons home. These are far
graver crimes against the spirit of truth than any condemned in Locke’s
pretentious aphorism, and they lead to far more serious consequences.

If you ask me what I have in mind when I say that agnostic empiricism
never faces facts, I reply that it never really takes account of that
natural history of knowledge, of that complex of causes, rational and
non-rational, which have brought our accepted stock of beliefs into
being. And if you ask me what I have in mind when I say that though it
reasons, it rarely reasons home, I reply that, when it is resolved not
to part with a conclusion, anything will serve it for an argument; only
when it is incredulous does it know how to be critical.

This is not an error into which I propose to fall. But I hope that
I shall not on that account be deemed indifferent to the claims of
reason, or inclined to treat lightly our beliefs either about the
material world or the immaterial. On the contrary, my object, and my
only object, is to bring reason and belief into the closest harmony
that at present seems practicable. And if you thereupon reply that such
a statement is by itself enough to prove that I am no ardent lover of
reason; if you tell me that it implies, if not permanent contentment,
at least temporary acquiescence in a creed imperfectly rationalised,
I altogether deny the charge. So far as I am concerned, there is no
acquiescence. Let him that thinks otherwise show me a better way. Let
him produce a body of beliefs which shall be at once living, logical,
and sufficient;—not forgetting that it cannot be sufficient unless it
includes within the circuit of its doctrines some account of itself
regarded as a product of natural causes, nor logical unless it provides
a rational explanation of the good fortune which has made causes which
are not reasons, mixed, it may be, with causes which are not _good_
reasons, issue in what is, by hypothesis, a perfectly rational system.
He who is fortunate enough to achieve all this may trample as he
likes upon less successful inquirers. But I doubt whether, when this
discoverer appears, he will be found to have reached his goal by the
beaten road of empirical agnosticism. This, though it be fashionably
frequented, is but a blind alley after all.

In the meanwhile we must, I fear, suffer under a system of beliefs
which is far short of rational perfection. But we need not acquiesce,
and we should not be contented. Whether this state of affairs will ever
be cured by the sudden flash of some great philosophic discovery is
another matter. My present aim, at all events, is far more modest. But
they, at least, should make no complaint who hold that common-sense
beliefs, and science which is a development of common-sense beliefs,
are, if not true, at least on the way to truth. For this conviction
I share. I profess it; I desire to act upon it. And surely I cannot
act upon it better than by endeavouring, so far as I can, to place it
in the setting which shall most effectually preserve its intellectual
value. This, at all events, is the object to which the four lectures
that immediately follow are designed to contribute.




LECTURE VI

PERCEPTION, COMMON SENSE, AND SCIENCE


I

Nothing would seem easier, at first sight, than to give a general
description of the ordinary beliefs of ordinary people about our
familiar world of things and persons. It is the world in which we live;
it is for all men _a_ real world; it is for many men _the_ real world;
it is the world of common sense, the world where the plain man feels at
home, and where the practical man seeks refuge from the vain subtleties
of metaphysics. Our stock of beliefs about it may perhaps be difficult
to justify, but it seems strange that they should be difficult to
describe; yet difficult, I think, they are.

Some statements about it may, however, be made with confidence. It is
in space and time; i.e. the material things of which it is composed,
including living bodies, are extended, have mutual position, and
possess at least some measure of duration.

Things are not changed by a mere change of place, but a change of place
relative to an observer always changes their appearance _for him_.
Common sense is, therefore, compelled in this, as in countless other
cases, to distinguish the appearance of a thing from its reality; and
to hold, as an essential article of its working creed, that appearances
may alter, leaving realities unchanged.

Common sense does not, however, draw the inference that our experiences
of material things is other than direct and immediate. It has never
held the opinion—or, if you will, the heresy—that what we perceive (at
least by sight and touch) are states of our own mind, which somehow
copy or represent external things. Neither has it ever held that the
character or duration of external things in any way depends upon
our observations of them. In perception there is no reaction by the
perceiving mind on the object perceived. Things in their true reality
are not affected by mere observation, still less are they constituted
by it. When material objects are in question, common sense never
supposes that _esse_ and _percipi_ are identical.

But then, what, according to common sense, _are_ things in their true
reality? What are they “in themselves,” when no one is looking at them,
or when only some of their aspects are under observation?

We can, at all events, say what (according to common sense) things
are _not_. They are more than collections of aspects. If we could
simultaneously perceive a “thing” at a thousand different distances,
at a thousand different angles, under a thousand varieties of
illumination, with its interior ideally exposed in a thousand different
sections, common sense, if pressed, would, I suppose, still hold that
these were no more than specimens of the endless variety of ways in
which things may appear, without either changing their nature or
fully revealing what that nature is. But though common sense might
give this answer, it would certainly resent the question being put.
It finds no difficulty in carrying on its work without starting these
disturbing inquiries. It is content to say that, though a thing is
doubtless always more than the sum of those aspects of it to which
we happen to be attending, yet our knowledge _that_ it is and _what_
it is, however imperfect, is, for practical purposes, sufficiently
clear and trustworthy, requiring the support neither of metaphysics
nor psychology.—This, with all its difficulties, is, I believe, an
account, true as far as it goes, of the world of things as common sense
conceives it. This is the sort of world which science sets out to
explain. Let me give an illustration.

We perceive some object—let us say the sun. We perceive it directly
and not symbolically. What we see is not a mental image of the sun,
nor a complex of sensations caused by the sun; but the sun itself.
Moreover, this material external object retains its identity while it
varies in appearance. It is red in the morning; it is white at midday;
it is red once more in the evening; it may be obscured by clouds or
hidden in eclipse; it vanishes and reappears once in every twenty-four
hours; yet, amid all these changes and vanishings, its identity is
unquestioned. Though we perceive it differently at different times, and
though there are times when we do not perceive it at all, we know it
to be the same; nor do we for a moment believe (with Heraclitus) that
when it is lost to view it has, on that account, either altered its
character or ceased to exist.

In the main, therefore, experience is, according to common sense, a
very simple affair. We see something, or we feel something, or, like
Dr. Johnson, we kick something, and “there’s an end on’t.” Experience
is the source of all knowledge, and therefore of all explanation; but,
in itself, it seems scarcely to require to be explained. Common sense
is prepared to leave it where it finds it. No doubt the occurrence
of optical or other illusions may disturb this mood of intellectual
tranquillity. Common sense, when it has to consider the case of
appearances, some of which are held, on extraneous grounds, to be real
and others to be illusory, may feel that there are, after all, problems
raised by perception—by the direct experience of things—which are not
without their difficulties. But the case of illusions is exceptional,
and rarely disturbs the even tenor of our daily round.


II

Now science, as it gladly acknowledges, is but an extension of common
sense. It accepts, among other matters, the common-sense view of
perception. Like common sense, it distinguishes the thing as it is
from the thing as it appears. Like common sense, it regards the things
which are experienced as being themselves unaffected by experience.
But, unlike common sense, it devotes great attention to the way in
which experience is produced by things. Its business is with the causal
series. This, to be sure, is a subject which common sense does not
wholly ignore. It would acknowledge that we perceive a lamp through the
light which it sheds, and recognise a trumpet through the sound which
it emits; but the nature of light or sound, and the manner in which
they produce our experience of bright or sonorous objects, it hands
over to science for further investigation.

And the task is cheerfully undertaken. Science also deems perception to
be the source of all our knowledge of external nature. But it regards
it as something more, and different. For perception is itself a part
of nature, a natural process, the product of antecedent causes, the
cause of subsequent effects. It requires, therefore, like other natural
facts, to be observed and explained; and it is the business of science
to explain it.

Thus we are brought face to face with the contrast on which so much
of the argument of these lectures turns: the contrast between beliefs
considered as members of a cognitive series, and beliefs considered
as members of a causal series. In the cognitive series, beliefs of
perception are at the root of our whole knowledge of natural laws.
In the causal series, they are the effects of natural laws in actual
operation. This is so important an example of this dual state that you
must permit me to consider it in some detail.

We may examine what goes on between the perceiving person and the
thing he perceives from either end; but it is by no means a matter of
indifference with which end we begin. If we examine the relation of the
perceiver to the perceived it does not seem convenient or accurate to
describe that relation as a process. It is an experience, immediate and
intuitive; not indeed infallible, but direct and self-sufficient. If
I look at the sun, it is the sun I see, and not an image of the sun,
nor a sensation which suggests the sun, or symbolises the sun. Still
less do I see ethereal vibrations, or a retinal image, or a nervous
reaction, or a cerebral disturbance. For, in the act of perceiving, no
intermediate entities are themselves perceived.

But now if we, as it were, turn round, and, beginning at the other end,
consider the relation of the perceived to the perceiver, no similar
statements can be made. We find ourselves concerned, not with an
act of intuition, but with a physical process, which is complicated,
which occupies time, which involves many stages. We have left behind
cognition; we are plunged in causation. Experience is no longer the
immediate apprehension of fact; it is the transmission of a message
conveyed from the object to the percipient by relays of material
messengers. As to how the transmission is effected explanations vary
with the growth of science. They have been entirely altered more than
once since the modern era began, and with each alteration they become
more complicated. They depend, not on one branch of science only, but
on many. Newtonian astronomy, solar physics, the theory of radiation,
the optical properties of the atmosphere, the physiology of vision,
the psychology of perception, and I daresay many other branches of
research, have to be drawn upon: and all this to tell us what it is we
see, and how it is we come to see it.


III

Now there is no one who possesses the least smattering of philosophy
who does not know that the views I have just endeavoured to describe
are saturated with difficulties: difficulties connected with the nature
of perception; difficulties connected with the nature of the object as
perceived; difficulties connected with its unperceived physical basis;
difficulties connected with the relation in which these three stand to
each other. For common sense the material object consists of a certain
number of qualities and aspects which are perceived, an inexhaustible
number which might be perceived, but are not, and (perhaps) a vaguely
conceived “somewhat” lying behind both. The medieval Aristotelian,
if I rightly understand him (which very likely I do not), developed
this “somewhat” into the notion of substance—an entity somewhat
loosely connected with the qualities which it supported, and in no
way explaining them. There was “substance” in a piece of gold, and
“substance” in a piece of lead; but there was nothing unreasonable in
the endeavour to associate the qualities of gold with the substance of
lead, and thus for all practical purposes to turn lead into gold.

Modern science teaches a very different lesson. It has, perhaps,
not wholly abandoned the notion of material substance, if this be
defined as the unperceivable support of perceivable qualities; but it
persistently strives to connect the characteristics of matter with
its structure, and, among other characteristics, that of producing, or
helping to produce, in us those immediate perceptions which we describe
as our experience of matter itself.

An important stage in this endeavour was marked by the famous
distinction between the primary and the secondary qualities of matter:
the primary qualities being the attributes of external material things
which were deemed to be independent of the observer (for example,
impenetrability, density, weight, configuration); the secondary
qualities being those which, apart from observers endowed with senses
like our own, would either exist differently, or would not exist at all
(for example, colour and taste). On this view the primary qualities
were among the causes of the secondary qualities, and the secondary
qualities were transferred from the thing perceived to the person
perceiving.

I am not the least concerned to defend this theory. It has been much
derided, and is certainly open to attack. But something like it seems
to be an inevitable stage in the development of modern views of nature.
The whole effort of physical science is to discover the material or
non-psychical facts which shall, among other things, account for
our psychical experiences. It is true that there are men of science,
as well as philosophers, who regard all such constructions as purely
arbitrary—mere labour-saving devices which have nothing to do with
reality. But though I shall have something to say about these theories
in my next course of lectures, for the present I need only observe that
they do not represent ordinary scientific opinion, either as it is,
or as it has ever been. Science thinks, rightly or wrongly, that she
is concerned with a real world, which persists independently of our
experience: she has never assented to the doctrine that the object of
her patient investigations is no more than a well-contrived invention
for enabling us to foretell, and perhaps to modify, the course of our
personal feelings.

But then, if science is right, we are committed to a division between
the contents of immediate experience and its causes, which showed
itself dimly and tentatively in the distinction between the secondary
and the primary qualities of matter, but has become deeper and more
impassable with every advance in physics and physiology. It was
possible to maintain (though, I admit, not very easy) that, while the
secondary qualities of matter are due to the action of the primary
qualities on our organs of perception, the primary qualities themselves
are, nevertheless, the objects of direct experience. The fact, for
example, that colour is no more than a sensation need not preclude us
from perceiving the material qualities which, like shape, or motion, or
mass, are the external and independent causes to which the sensation is
due. I do not say that this view was ever explicitly entertained—nor
does it signify. For, if we accept the teaching of science, it can, I
suppose, be entertained no more. The physical causes of perception are
inferred, but not perceived. The real material world has been driven
by the growth of knowledge further and further into the realm of the
unseen, and now lies completely hidden from direct experience behind
the impenetrable screen of its own effects.


IV

For consider what the causal process of perception really is if we
trace it from the observed to the observer—if we follow the main
strands in the complex lines of communication through which the object
seen reveals itself to the man who sees it.

I revert to my previous example—the sun. We need not consider those
of its attributes which are notoriously arrived at by indirect
methods—which are not perceived but inferred—its magnitude, for
example, or its mass. Confining ourselves to what is directly
perceived, its angular size, its shape (projected on a plane),
its warmth, its brightness, its colour, its (relative) motion,
its separation from the observer in space—how are these immediate
experiences produced?

The answers have varied with the progress of science; nor, for my
present purpose, does it greatly matter which answers we adopt. Let us
take those which are commonly accepted at the present moment. They are
not only the truest, but the fullest; and for that very reason they
put the difficulty with which we are concerned in the highest relief.
We begin our causal series with electrons, or, if you do not accept
the electric theory of matter in any of its forms, then with atoms and
molecules. We start with these, because the sun is a collection of
them, and because it is their movements which set going the whole train
of causes and effects by which the sun produces in us the perception of
itself.

We may take, as the next stage, ethereal vibrations, of various
lengths and various amplitudes, sent travelling into space by the
moving particles. A fraction of these waves reaches our atmosphere, and
of that fraction a fraction reaches our eyes, and of that fraction a
further fraction falls within the narrow limits of length to which our
eyes are sensitive. It is through these that we are able to _see_ the
sun. Still another fraction, not necessarily identical in wave-lengths,
affects the nerves which produce in us the sensation of warmth. It is
through these that we are able to _feel_ the sun.

But, before we either see or feel, there is much still to be
accomplished. The causal series is not nearly completed. Complicated
neural processes, as yet only imperfectly understood; complicated
cerebral processes—as yet understood still less—both involving
physiological changes far more complicated than the electrical
“accelerations” or electro-magnetic disturbances with which we have
hitherto been dealing, bring us to the end of the material sequence of
causes and effects, and lay the message from the object perceived on
the threshold of the perceiving consciousness. So does a postman slip
into your letter-box a message which has been first written, then
carried by hand, then by a mail-cart, then by a train, then by hand
again, till it reaches its destination, and nothing further is required
except that what has been written should be read and understood.

Thus far the material process of transmission. The psychical process
has still to come. Psychology is a science, not less than physiology or
physics; and psychology has much to say on the subject of perception.
It is true that scientific explorers whose point of departure
is introspective; who concern themselves primarily with ideas,
conceptions, sensations, and so forth, rarely succeed in fitting their
conclusions without a break to those of their colleagues who begin
with the “external” causes of perception. The two tunnels, driven from
opposite sides of the mountain, do not always meet under its crest.
Still, we cannot on that account ignore the teaching of psychology on
the genesis of perceptual experience regarded, not as the ground of
knowledge, but as a natural product.

I do not mean to attempt a summary of psychology from this point
of view, any more than I have attempted a summary of physics or
physiology. My argument is really independent, in this case as in the
other, of particular systems. All I ask for is the admission that in
perception there are conditions antecedently supplied by the perceiving
consciousness which profoundly modify every perceptual experience—and
that these conditions (unlike Kant’s forms) are natural growths,
varying, like other natural growths, from individual to individual.
This admission must, I think, be made by every empirical psychologist,
to whatever school he happens to belong.

If this statement seems obscure in its general and abstract form,
consider a particular application of it. Let us assume, with many
psychologists, that Will, in the form of selective attention, lies
at the root of our perceptual activities; that we may therefore be
said, in a sense, voluntarily to create the objects we perceive; that
experience of the present is largely qualified by memories of the
past, and that the perceptual mould into which our sensations are run
is largely a social product—born of the intercourse between human
beings, and, in its turn, rendering that intercourse possible. Is it
not clear that, on assumptions like these, consciousness, so far from
passively receiving the messages conveyed to it through physical and
physiological channels, actively modifies their character?


V

But why, it may be asked, should these considerations involve any
difficulty? And, if there be a difficulty, what is its exact character?

In its most general form the difficulty is this. It is claimed by
science that its conclusions are based upon experience. The experience
spoken of is unquestionably the familiar perception of external things
and their movements as understood by common sense; and, however much
our powers of perception be increased by telescopes, microscopes,
balances, thermometers, electroscopes, and so forth, this common-sense
view suffers no alteration. The perceptions of a man of science are,
in essence, the perceptions of ordinary men in their ordinary moments,
beset with the same difficulties, accepted with the same assurance.
Whatever be the proper way of describing scientific results, the
experimental data on which they rest are sought and obtained in the
spirit of “naïf realism.”

On this foundation science proceeds to build up a theory of nature
by which the foundation itself is shattered. It saws off the branch
on which it is supported. It kicks down the ladder by which it has
climbed. It dissolves the thing perceived into a remote reality which
is neither perceived nor perceivable. It turns the world of common
sense into an illusion, and on this illusion it calmly rests its case.

But this is not the only logical embarrassment in which we are
involved. When science has supplied us with a description of external
things as they “really are,” and we proceed to ask how the physical
reality reveals itself to us in experience, a new difficulty arises,
or, if you like, the old difficulty with a new face. For science
requires us to admit that experience, from this point of view, is
equivalent to perception; and that perception is a remote psychological
effect of a long train of causes, physical and physiological,
originally set in motion by the external thing, but in no way
resembling it. Look carefully at this process from the outside, and
ask yourselves why there should be any such correspondence between the
first of these causes and the last of these effects, as should enable
us to know or infer the one from the other? Why should the long train
of unperceivable intermediaries that connect the perceived with the
perceiver be trusted to speak the truth?

I just now likened these intermediaries to relays of messengers. But
messengers are expected to hand on their message in the form in which
they have received it. The messengers change, but not the message. The
metaphor, therefore, is far too complimentary to the train of physical
causes which reveal the material thing to the perceiving consciousness.
The neural changes which are in immediate causal contiguity with that
psychical effect which we call “the experience of an external object”
have no resemblance whatever either to the thing as it is perceived
or to the thing as it really is. Nor have they any resemblance to the
proximate cause which sets them going, namely, the ethereal vibrations;
nor have these to the accelerated electrons which constitute the
incandescent object which we “experience” as the sun. Nor has the sun,
as experienced, the slightest resemblance to the sun as it really is.

Hume, in his “Dialogues on Natural Religion,” urges the absurdity of
arguing from an effect like the universe to a cause like God, since
the argument from a particular effect to a particular cause, or from
a particular cause to a particular effect, is only legitimate when we
have had some previous experience of that particular class of causal
sequence; and nobody, it is plain, has had the opportunity of observing
Creation. Whatever be the value of this argument in the case of God
and the world, it seems to me conclusive in the case of matter and
man. We cannot argue from purely psychical effects, like perceptions
and sensations, to external causes, like physiological processes or
ethereal vibrations, _unless_ we can experience both sets of facts in
causal relation. And this, if we accept the conclusions of science,
we can never do—partly because the intermediate members of the causal
series are unperceivable; partly because, if they were perceivable,
perception has been reduced by science to a purely psychical
effect—which obviously cannot include its material cause. This last
must for ever remain outside the closed circle of sensible experiences.

Here, of course, we find ourselves face to face with a familiar
objection to those philosophies of perception which deny that we
have any access to external reality, except through ideas which are
its copy. But they are in a better case than science. They need not
explicitly admit a discrepancy between their premises and their
conclusions. They arrive at the subjectivity of perception by methods
of introspection. They interrogate consciousness, and are convinced
that every experience can be analysed into sensations and ideas,
some of which, no doubt, suggest externality, but none of which are
external. If, then, the worst comes to the worst, they can, and often
do, lighten their philosophic ship by pitching the whole material
universe overboard as a bit of superfluous cargo. But physical science
cannot (at least in my opinion) do anything of the kind. Its whole
business is with the material universe. Its premises are experiences
of external things, not of internal sensation and ideas. And if it
has associated its fortunes with a theory of perception which treats
experience as a natural effect of the thing experienced; if it has
thereby wandered within sight of the perilous problems which haunt the
frontier where mind and matter meet, it has not done so in a spirit of
reckless adventure, but in the legitimate pursuit of its own affairs.

This does not necessarily make things easier. We are not here concerned
with questionings about the remoter provinces of knowledge—provinces
unexplored except by specialists, negligible by ordinary men engaged
on ordinary business. On the contrary, the difficulties to which I
have called your attention threaten the unquestioned assumption of
daily life, the presupposition of every scientific experiment, and the
meaning of every scientific generalisation. They cannot be ignored.

On the other hand, threaten as they may, these difficulties can never
modify our attitude either towards practical action or scientific
theory. Beliefs which were inevitable before remain inevitable still.
The supreme act of instinctive faith involved in the perception of
external objects stands quite unshaken. Whatever we may think of
Berkeley, we cannot give up Dr. Johnson. “Seeing,” says the proverb,
“is believing”; and it speaks better than it knows.


VI

Can we, then, adopt a middle course, and, imitating the serene
acquiescence of Hume, accept the position of sceptics in the study and
believers in the market-place? This seems eminently unsatisfactory;
and, since believers on this subject we must perforce remain, it
behoves us to consider how, and on what terms, we can best qualify our
scepticism.

Observe, then, that the particular difficulty which has been occupying
our attention arises in the main from the assumption that our
common-sense beliefs in the reality and character of material things
have no other foundation than the fact that we so perceive them. From
such premises it was impossible, it seemed, to infer that they exist
otherwise than as they are perceived; and still more impossible to
regard the immediate intuition by which we apprehend the object, and
the long-drawn sequence of causes by which the object is revealed, as
being the same process looked at from different ends.

But this difficulty is greatly mitigated if we hold that our belief in
an independent world of material objects, however it may be caused, is
neither a conclusion drawn from this or that particular experience nor
from all our experiences put together, but an irresistible assumption.
Grant the existence of external things, and it becomes possible and
legitimate to attempt explanations of their appearance, to regard
our perceptions of them as a psychical and physiological product
of material realities which do not themselves appear and cannot be
perceived. Refuse, on the other hand, to grant this assumption, and no
inductive legerdemain will enable us to erect our scientific theories
about an enduring world of material things upon the frail foundation
of successive personal perceptions.

If this does not seem clear at first sight it is, I think, because
we do not consider our experiences as a whole. A limited group of
experiences—say Faraday’s experiments with electro-magnets—may guide
us into new knowledge about the external world, including aspects of
that world which are not open to sense perception. But then these
experiences assume that this external world exists, they assume it
to be independent of perception, they assume it to be a cause of
perception. These assumptions once granted, experiment may be, and
is, the source of fresh discoveries. But experiment based on these
assumptions never can establish their truth; and if our theory
of knowledge requires us to hold that “no proposition should be
entertained with greater assurance than the proofs it is built on will
warrant,” our fate is sealed, and we need never hope to extricate
ourselves from the entanglements in which a too credulous empiricism
has involved us. This means that one at least of the inevitable
beliefs enumerated in the first lecture—the belief in an external
world—is a postulate which science is compelled to use but is unable to
demonstrate. How, then, are we to class it? It is not a law of thought
in the accepted meaning of that expression. We are not rationally
required to accept it by the very structure of our thinking faculties.
Many people, indeed, theoretically reject it; none, so far as I know,
regard it as self-evident. On the other hand, it is not an inference
from experience; neither is it an analytic judgment in which the
predicate is involved in the subject. Described in technical language,
it would seem to be _a priori_ without being necessary, and synthetic
without being empirical—qualities which, in combination, scarcely fit
into any familiar philosophic classification.

According to the view which I desire to press in these lectures, this
marks a philosophic omission. I regard the belief in an external world
as one of a class whose importance has been ignored by philosophy,
though all science depends on them. They refuse to be lost in the
common herd of empirical beliefs; though they have no claim to be
treated as axioms. We are inclined to accept them, but not rationally
compelled. The inclination may be so strong as practically to exclude
doubt; and it may diminish from this maximum to a faint feeling of
probability. But, whatever be the strength of these beliefs, and
whatever the nature of their claims, the importance of the part they
play in the development and structure of our current creed cannot
easily be exaggerated.

Before, however, I consider other specimens of this class, I must
interpolate a long parenthesis upon probability. I have just described
these fundamental beliefs as being “probable” in varying degrees.
Gradations of probability are familiar to the mathematical theorist.
Are we, then, here concerned with probability as conceived by the
mathematician? It is evidently essential to settle this question before
proceeding with the main argument; and I propose, therefore, to turn
aside and devote the next lecture to its consideration.




LECTURE VII

PROBABILITY, CALCULABLE AND INTUITIVE


I

I wish I were a mathematician. There is in the history of the
mathematical sciences, as in their substance, something that strangely
stirs the imagination even of the most ignorant. Its younger sister,
Logic, is as abstract, and its claims are yet wider. But it has never
shaken itself free from a certain pretentious futility: it always seems
to be telling us, in language quite unnecessarily technical, what we
understood much better before it was explained. It never helps to
discover, though it may guarantee discovery; it never persuades, though
it may show that persuasion has been legitimate; it never aids the work
of thought, it only acts as its auditor and accountant-general. I am
not referring, of course, to what I see described in recent works as
“modern scientific logic.” Of this I do not presume to speak. Still
less am I referring to so-called Inductive Logic. Of this it is scarce
worth while to speak.[9] I refer to their more famous predecessor, the
formal logic of the schools.

But in what different tones must we speak of mathematics! Mill, if
I remember rightly, said it was as full of mysteries as theology.
But while the value of theology for knowledge is disputed, the value
of mathematics for knowledge is indisputable. Its triumphs can be
appreciated by the most foolish, they appeal to the most material. If
they seem sometimes lost to ordinary view in the realms of abstract
infinities, they do not disdain to serve us in the humbler fields of
practice. They have helped mankind to all the greatest generalisations
about the physical universe: and without them we should still be
fumbling over simple problems of practical mechanics, entangled in a
costly and ineffectual empiricism.

But while we thank the mathematician for his aid in conquering Nature,
we envy him his powers of understanding her. Though he deals, it would
seem, entirely with abstractions, they are abstractions which, at his
persuasion, supply the key to the profoundest secrets of the physical
universe. He holds the clues to mazes where the clearest intellect,
unaided, would wander hopelessly astray. He belongs to a privileged
caste.

I intend no serious qualification of this high praise when I add that,
as regards the immediate subject of this lecture, I mean Probability,
mathematicians do not seem to have given ignorant inquirers like myself
all the aid which perhaps we have a right to ask. They have treated
the subject as a branch of applied mathematics. They have supplied us
with much excellent theory. They have exercised admirable skill in the
solution of problems. But I own that, when we inquire into the rational
basis of all this imposing superstructure, their explanations, from the
lay point of view, leave much to be desired.

“Probability,” says an often-quoted phrase of Butler, “is the guide
of life.” But the Bishop did not define the term; and he wrote
before the theory of probability had attained to all its present
dignities. Neither D’Alembert nor Laplace had discussed it. Quetelet
had not applied it to sociology, nor Maxwell to physics. Jevons had
not described it as the “noblest creation of the intellect.” It is
doubtful whether Butler meant by it exactly what the mathematicians
mean by it, and certain that he did not suspect any lurking ambiguity
in the expression.

Nor, indeed, would the existence of such ambiguity be commonly admitted
by any school of thought. The ordinary view is that the theory of
probabilities is, as Laplace described it, “common sense reduced to
calculation.” That there could be two kinds of probability, only one of
which fitted this description, would be generally regarded as a heresy.
But it is a heresy in which I myself believe; and which, with much
diffidence, I now propose to defend.


II

The well-known paradox of the theory of probabilities is that, to all
seeming, it can extract knowledge from ignorance and certainty from
doubt. The point cannot be better put than by Poincaré in discussing
the physical theory of gases, where the doctrine of probability
finds an important application. Let me give you his view—partly in
paraphrase, partly in translation. “For omniscience,” he says in
substance, “chance would not exist. It is but the measure of our
ignorance. When we describe an event as accidental we mean no more
than that we do not fully comprehend the conditions by which it was
brought about.

“But is this the full truth of the matter? Are not the laws of chance a
source of knowledge? And, stranger still, is it not sometimes easier to
generalise (say) about random movements than about movements which obey
even a simple law—witness the kinetic theory of gases? And, if this be
so, how can chance be the equivalent of ignorance? Ask a physicist to
explain what goes on in a gas. He might, perhaps, express his views in
some such terms as these: ‘You wish me to tell you about these complex
phenomena. If by ill luck I happened to know the laws which govern
them, I should be helpless. I should be lost in endless calculations,
and could never hope to supply you with an answer to your questions.
Fortunately for both of us, I am completely ignorant about the matter;
I can, therefore, supply you with an answer at once. This may seem odd.
But there is something odder still, namely, that my answer will be
right.’”

Now, what are the conditions which make it possible thus to extract
a correct answer from material apparently so unpromising? They
would seem to be a special combination of ignorance and knowledge,
the joint effect of which is to justify us in supposing that the
particular collection of facts or events with which we are concerned
are happening “at random.” If we could calculate the complex causes
which determine the fall of a penny, or the collisions of a molecule,
we might conceivably deal with pennies or molecules individually; and
the calculus of probability might be dispensed with. But we cannot;
ignorance, therefore, real or assumed, is thus one of the conditions
required to provide us with the kind of chaos to which the doctrine of
chances may most fittingly be applied. But there is another condition
not less needful, namely, knowledge—the knowledge that no extraneous
cause or internal tendency is infecting our chaotic group with some
bias or drift whereby its required randomness would be destroyed. Our
penny must be symmetrical, and Maxwell’s demons[10] must not meddle
with the molecules.

The slow disintegration of radium admirably illustrates the behaviour
of a group or collection possessing all the qualities which we require.
The myriad atoms of which the minutest visible fragment is composed are
numerous enough to neutralise eccentricities such as those which, in
the case of a game of chance, we call “runs of luck.” Of these atoms
we have no individual knowledge. What we know of one we know of all;
and we treat them not only as a collection, but as a collection made at
random. Now, physicists tell us that out of any such random collection
a certain proportion will disintegrate in a given time; and always the
same proportion. But whence comes their confidence in the permanence
of this ratio? Why are they so assured of its fixity that these random
explosions are thought to provide us with a better time-keeper than
the astronomical changes which have served mankind in that capacity
through immemorial ages? The reason is that we have here the necessary
ignorance and the necessary knowledge in a very complete form. Nothing
can well exceed our ignorance of the differences between one individual
radium atom and another, though relevant differences there must be.
Nothing, again, seems better assured than our knowledge that no
special bias or drift will make one collection of these atoms behave
differently from another. For the atomic disintegration is due to no
external shock or mutual reaction which might affect not one atom only,
but the whole group. A milligram of radium is not like a magazine of
shells, where if one spontaneously explodes all the rest follow suit.
The disruption of the atom is due to some internal principle of decay
whose effects no known external agent can either hasten or retard.
Although, therefore, the proportion of atoms which will disintegrate
in a given time can only be discovered, like the annual death-rate
among men, by observation, yet once discovered it is discovered for
ever. Our human death-rate not only may change, but does change. The
death-rate of radium atoms changes not. In the one case, causes are in
operation which modify both the organism and the surroundings on which
its life depends. In the other case, it would seem that the average of
successive generations of atoms does not vary, and that, once brought
into existence, they severally run their appointed course unaffected by
each other or by the world outside.

So far we have been concerned with groups or collections or series;
and about these the doctrine of chances and the theory of error
may apparently supply most valuable information. But in practical
affairs—nay, even in many questions of scientific speculation—we are
yet more concerned about individual happenings. We have, therefore,
next to ask how we can infer the probability of a particular event from
our knowledge of some group or series to which it belongs.

There seems at first sight no difficulty in this, provided we have
sufficient knowledge of the group or series of which the particular
event is a member. If we know that a tossed penny will in the long run
give heads and tails equally often, we do not hesitate to declare that
the chances of a particular throw giving “heads” are even. To expect
in any given case heads rather than tails, or tails rather than heads,
is inconsistent with the objective knowledge of the series which by
hypothesis we actually possess.

But what if our information about the group or series is much less
than this? Suppose that, instead of knowing that the two possible
alternatives do in fact occur equally often, we are in the less
advantageous position of knowing no reason why they should _not_ occur
equally often. We ought, I suppose, still to regard the chances of
a particular toss as even; although this estimate, expressed by the
same fraction (½) and held with the same confidence, is apparently
a conclusion based on ignorance, whereas the first conclusion was
apparently based on knowledge.

If, for example, we know that a die is fairly made and fairly thrown,
we can tell how often a particular number will turn up in a long series
of throws, and we can tell what the chances are that it will turn up on
the occasion of a single throw. Moreover, the two conclusions seem to
be logically connected.

But if we know that the die is loaded we can no longer say how the
numbers will be distributed in a series of throws, however long, though
we are sure that the distribution will be very different from what it
would have been had the die been a fair one. Nevertheless, we can still
say (before the event) what the chances are of a particular number
turning up on a single throw; and these chances are exactly the same
whether the die be loaded or whether it be fair—namely, one-sixth. Our
objective knowledge of the group or series has vanished, but, with the
theory of probability to help us, our subjective conviction on this
point apparently remains unchanged.

There is here, surely, a rather awkward transition from the “objective”
to the “subjective” point of view. We were dealing, in the first case,
with groups or series of events about which the doctrine of chances
enabled us to say something positive, something which experience would
always confirm if the groups or series were large enough. A perfect
calculator, endowed with complete knowledge of all the separate group
members, would have no correction to make in our conclusions. His
information would be more complete than our own, but not more accurate.
It is true that for him “averages” would have no interest and “chance”
no meaning. Nevertheless, he would agree that in a long series of
fair throws of a fair die any selected face would turn up one-sixth
times as often as all the others taken together. But in the second
case this is no longer so. Foresight based on complete knowledge would
apparently differ from foresight based on the calculation of chances.
Our calculator would be aware of the exact manner in which the die
was loaded, and of the exact advantage which this gave to certain
numbers. He would, therefore, know that in asserting the chance of any
particular number turning up on the first throw to be one-sixth, we
were wrong. In what sense, then, do we deem ourselves to have been
right?

The answer, I suppose, is that we were right _not_ about a group of
throws made with _this_ loaded die, but about a group of such groups
made with dice loaded at random—a group in which “randomness” was so
happily preserved among its constituent groups that its absence within
each of these groups was immaterial, and no one of the six alternative
numbers was favoured above another.

A similar reply might be given if we suppose our ignorance carried
yet a step further. Instead of knowing that our die was loaded, and
being ignorant only of the manner of its loading, we might be entirely
ignorant whether it was loaded or not. The chances of a particular
number turning up on the first throw would still be one-sixth. But the
series to which this estimate would refer would neither be one composed
of fair throws with a fair die, nor one composed of a series of throws
with dice loaded at random, but one composed of a series of throws with
dice chosen at random from a random collection of dice, loaded and not
loaded!

It seems plain that we have no experimental knowledge of series piled
on series after this fashion. Our conclusions about them are not based
on observation, nor collected from statistics. They are arrived at _a
priori_; and when the character of a series is arrived at _a priori_,
the probability of a particular event belonging to it can be arrived
at independently by the same method. No reference to the series is
required. The reason we estimate the chances against any one of the
six possible throws of a die as five to one under each and all of
the suppositions we have been discussing is that under none of them
have we any ground for thinking any one of the six more probable than
another;—even though we may have ground for thinking that in a series
of throws made with that particular die, some number, to us unknown,
will in fact turn up with exceptional frequency.

The most characteristic examples, therefore, of problems in probability
depend for their solution on a bold use of the “principle of sufficient
reason.” We treat alternatives as equally likely when we cannot see any
ground for supposing that one is more likely than another. This seems
sensible enough; but how far may we carry this process of extracting
knowledge from ignorance? An agnostic declines to offer any opinion
on the being of God because it is a matter about which he professes
to know nothing. But the universe either has a spiritual cause, or it
has not. If the agnostic is as ignorant as he supposes, he cannot have
any reason for preferring the first alternative to the second, or the
second to the first. Must he, therefore, conclude that the chances
of Theism are even? The man who knows this knows much. He knows, or
may know, that God’s existence is slightly more probable than his own
chance of winning a coup at Monte Carlo. He knows, or may know, the
exact fraction by which the two probabilities differ. How, then, can he
call himself an agnostic?

Every one must, I think, feel that such reasoning involves a misuse
of the theory of probability. But is that misuse without some
justification? The theory, unless I misread it, permits, or rather
requires, us to express by the same fraction probabilities based on
what is little less than complete knowledge, and probabilities based
on what is little more than complete ignorance. To arrive at a clear
conclusion, it seems only necessary to apply the “law of sufficient
reason” to defined alternatives; and it is apparently a matter of
perfect indifference whether we apply this law in its affirmative or
its negative shape; whether we say “there is every reason for believing
that such and such alternatives happen equally often,” or whether we
say “there is no reason for thinking that one alternative happens more
often than the other.” I do not criticise this method; still less do
I quarrel with it. On the contrary, I am lost in admiration of this
instrument of investigation, the quality of whose output seems to
depend so little on the sort of raw material with which it is supplied.


III

My object, indeed, is neither to discuss the basis on which rests
the calculus of probabilities—a task for which I own myself totally
unfit—nor yet to show that a certain obscurity hangs over the limits
within which it may properly be employed. I desire rather to suggest
that, wherever those limits are placed, there lies beyond them a kind
of probability yet more fundamental, about which the mathematical
methods can tell us nothing, though it possesses supreme value as a
“guide of life.”

Wherein lies the distinction between the two? In this: the doctrine of
calculable probability (if I may so call it) has its only application,
or its only assured application, within groups whose character is
either postulated, or is independently arrived at by inference and
observation. These groups, be they natural or conventional, provide a
framework, marking out a region wherein prevails the kind of ignorance
which is the subjective reflection of objective “randomness.” This is
the kind of ignorance which the calculus of probabilities can most
successfully transmute into knowledge: and herein lies the reason why
the discoverers of the calculus found their original inspiration in
the hazards of the gambling-table, and why their successors still find
in games of chance its happiest illustrations. For in games of chance
the group framework is provided by convention; perfect “randomness”
is secured by fitting devices; and he who attempts to modify it is
expelled from society as a cheat.

None of these observations apply to the kind of probability on
whose importance I am now insisting. If calculable probability be
indeed “common sense reduced to calculation,” intuitive probability
lies deeper. It supports common sense, and it supplies the ultimate
ground—be it secure or insecure—of all work-a-day practice and all
scientific theory. It has nothing to do with “randomness”; it knows
nothing of averages; it obeys no formal laws; no light is thrown on it
by cards or dice; it cannot be reduced to calculation. How, then, is it
to be treated? What place is it to occupy in our general scheme?

These are all important questions. But no answer to them can be given
till we have pressed somewhat further the line of thought which the
discussion in this present lecture has for a moment interrupted. Before
I began this long parenthesis on the theory of chance, I was occupied
with a most important example of a belief which possesses the highest
degree of intuitive probability, but no calculable probability at all.
I mean the belief in an independent physical universe. In the next
lecture I shall resume the general thread of my argument, and consider
another belief of the same kind which is not less—some would say even
more—essential to natural science than the one with which I have
already dealt. I mean a belief in the regularity of nature.


FOOTNOTES:

[9] Although, as a matter of fact, I do speak of it in the next lecture.

[10] Maxwell, as all who interest themselves in physics are aware,
arrived at very interesting conclusions by considering what would
happen if little demons interfered with the random motions of the
molecules constituting a gas.




LECTURE VIII

UNIFORMITY AND CAUSATION


I

In my last lecture but one I dwelt upon the interplay of causes and
reasons in one special case—the case of our immediate experiences of
the external world, the world in which we move, the world investigated
by the physical sciences. No case can indeed be more important; for
these immediate experiences are deemed by every man to be his guide
through all the hours of his waking life, and by every man of science
to supply the evidence on which depends all our knowledge of natural
laws.

Yet this very statement suggests the existence of another series of
problems not less important and not less closely connected with my
general argument. For, how do we get from particular experiences to
general laws—from beliefs about individual occurrences to beliefs
about the ordering of the universe? These beliefs, looked at from the
scientific point of view, are, as I have so often observed, a natural
product. They have a history like other natural products. They are the
effects of a long train of causes; and among those causes are some
which claim, rightly or wrongly, to be reasons, an uncounted multitude
which make no such claim, and others, again, which occupy a doubtful
position between the two.

Imagine an external intelligence studying the methods by which
earth-born creatures of various types adjust themselves to future
circumstances. The most primitive method is, I suppose, no more than
simple nervous reaction. The most developed method involves reasoned
expectation. And between these two extremes our supposed observer would
see a long series of intermediate forms melting into one another by
insensible gradation.

From the point of view of the argument I am endeavouring to present
to you, this development is of the greatest interest. The creation
of a capacity for expectation, and of an inclination to expect a
future similar to the past, must be deemed one of the most remarkable
triumphs of selection—if to selection it indeed be due. Here we have
this irrational mimic of reason, starting from the simplest forms of
response to external stimulus, improving them into such excellent
imitations of inductive reasoning as those which lead a chick, no more
than a few hours old, to reject food which it has once found nasty[11];
and finally evolving out of these humble beginnings a mode of inference
which, according to empirical philosophy, is the true and only source
of all our general knowledge, whether of nature or of man.

It must be owned, indeed, that the attempt to treat instinctive
expectation as a form of rational inference has been a lamentable
failure. By no exercise of ingenuity can beliefs about what is not
experienced be logically extracted from particular experiences,
multiply them as you will. It is in vain that empirical philosophers
attempt to give an air of rationality to this leap from the known to
the unknown by the use of high-sounding logical titles. “Induction
by simple enumeration” is doubtless an imposing name. But those who
practise the thing are in no wise improving on their predecessor, the
chick. Indeed they lag behind it. For the chick expects—but gives no
reason; the empirical philosopher expects—and gives a bad one.


II

Expectation, then, if it is to be rational, can only be rationally
extracted from experiences by the aid of one or more general
principles. What principles are they?

One of them, at all events, must be the regularity of nature. In some
form or other, and to some degree or other, this is assumed in every
scientific speculation and in every purposeful action reflectively
performed. It is, as you may recollect, one of the “inevitable beliefs
of common sense” to which I referred in my first lecture.

But you may also recollect that in the same lecture I pointed out that
inevitable beliefs, though we cannot avoid holding them in some shape,
are, and have been, held in many shapes; shapes which vary with the
changes in our general outlook on men and things. In what shape, then,
should our belief in regularity now be held?

The shape in which it is very commonly formulated is something of
this kind: “everything is caused; and the same causes are always
followed by the same effects.” This is the so-called “law of universal
causation.” It has been treated as an assured truth by philosophers of
many different schools, though not always for the same reasons; and, so
far as the physical universe is concerned, the modern world accepts it
without demur. It is, nevertheless, open to criticism from two points
of view. It asserts somewhat more about the course of nature than
experience suggests, and somewhat less than science requires. Let me
take the two points separately.

When I was dealing with ethics I had occasion to point out that if
the primitive manifestations of loyalty and love are products of
selection, they have developed by a kind of internal momentum, to a
point far beyond that to which selection can possibly have carried
them. Something of the same kind has happened in the case of the causal
postulate. Selection, we must suppose, has produced the capacity for
acquiring habitual expectations; and habitual expectation is induction
without reasoning. Like induction, it would not only be useless, but
harmful, if no regularity existed; if at any moment the future ceased
to bear some resemblance to the past. But the regularity asserted by
the law of universal causation is far in excess of this requirement.
The law applies to regions which never come within the range of finite
experience; and, as regards regions which do come within that range,
experience hardly confirms it. We may, of course, attribute the
apparent irregularities in nature to our ignorance or our errors; and
this, in fact, is what we always do. We must (we think) have observed
wrongly or insufficiently; or it may be that a clearer insight would
show how apparent aberrations really illustrate some larger law, or
depend on conditions at present beyond our ken. Such explanations
are easy; and, what is more, they are true. There is no complaint to
be made of a verdict in favour of absolute uniformity except that it
outruns the evidence. None surely, who understand the meaning of the
words they use, will dare to assert that nature _appears_ regular. What
they _may_ assert is, that the more you examine it, the more regular
it appears. The reign of law is always extending. New provinces are
always being added to its domains. Anomalies vanish as knowledge grows;
and the absolute uniformity which we now only know by faith, we may
some day know by sight.

To this “credo” (with reservations) I readily subscribe. But it sounds
a little strange in the mouths of some who preach it. Does it not imply
that we interpret our experiences in the light of a preconceived scheme
of things; that we force our observations into a mould which they do
not naturally fit? If, in unravelling a cypher, I come across passages
which are unintelligible, I attribute the check to my own ignorance
or dullness. Why? Because I know independently that the cypher has a
meaning, if only I could find it. But the empirical agnostic professes
to know nothing about the world, except what he has observed himself or
what other people have observed for him. Why, then, should he suppose
perfect regularity to exist when no perfect regularity appears? Why is
he not content to accept what he finds, namely, a regularity which is
real but incomplete?

It is no reply to say that patient genius is constantly detecting order
in apparent chaos. So it is. And when this happens, by all means
rearrange your map of the universe accordingly. But do not argue that
chaos is therefore non-existent. The belief in universal causation is
not based on argument, nor yet on observation. It depends on what I
have described as intuitive probability. And if we refuse to regard
nature as liable to lapses from perfect uniformity, this is not because
such a theory is unthinkable, not because it is contrary to experience,
not because it is incompatible with knowledge, not because it is fatal
to purposeful action; for it is none of these things. We reject it
because it is out of harmony with the ideal we have formed of what the
material universe ought to be and is: and so strong is this speculative
prepossession that there is no experimental evidence which would
convince a man of science that, when physical causes were the same,
physical consequences could be different.


III

But this observation brings me to my second commentary on the formula
of universal causation. If, as I have contended, it goes beyond what
mere experience suggests, it also falls short of what scientific
inference requires. The uniformity it postulates lacks a certain kind
of “structure” which is absolutely necessary if the past is to be
explained and the future foreseen. It is not enough for this purpose
that the course of Nature should be determined. It must be determined
after a particular pattern; its uniformity must conform to a particular
type.

At first sight this statement may seem rather obscure. What (you
will ask) is this “structure” or pattern whose absence would be so
disastrous to knowledge? It is a structure (I reply) which makes it
possible to break up the flow of events into intelligible repetitions.
It is not enough that the condition of the world at any moment should
be strictly determined by its condition at the preceding moment.
Such a world would, I suppose, completely conform to the doctrine of
uniformity, and obey both in spirit and in letter the law of universal
causation. Yet, unless it also conformed to the additional canon I
have just laid down, it would provide no basis either for scientific
knowledge or for practical decision. The same consequent would always
succeed the same antecedent, if and when it recurred. But, unless we
accept the cyclic theories of the Stoics, it never would recur. The
completest knowledge of the past would tell us nothing about the
future; not because the succession of events was arbitrary or (as the
word is commonly misused) miraculous; but because each cross-section
of the stream of Time (that is to say, the sum of all contemporaneous
facts and events) had to be considered as a single cause, completely
determining the whole cross-sections immediately in front of it; and,
as a single effect, completely determined by the whole cross-section
immediately behind it. Such a world might have a history, but it could
never have a science.

The reason is plain. Science requires uniformities even more than
uniformity; and a universe such as I have just described has uniformity
but no uniformities. The very phrase “laws of nature” shows that it is
these subordinate uniformities for which we look. The whole efforts
of the skilled investigator are directed towards so isolating the
sequences he is examining that his experiments shall become (as the
phrase goes) _crucial_. If no such isolation could be effected, it
would never be possible to point to some “phenomenon” and say of it
“Here is a cause,” and to some other “phenomenon” and say of it “Here
is its effect.” The world, in short, must have a structure which
connects its successive phases in such a way that definite parts of all
that exists or happens are knit with peculiar closeness to definite
parts of what existed or happened before. It is on these connecting
strands that we mainly fix our gaze; they are often difficult to trace,
they are sometimes hopelessly entangled; but when we can bring them
into clear vision, then, and not till then, we triumphantly say that we
have discovered a law of nature.

We are so familiar with this “fibrous” structure of the natural world
that it seems almost a matter of course. Mill, for example, assumes
it, unconsciously no doubt, through all his exposition of inductive
methods: and if he had not assumed it, these methods would have come
tumbling about his ears in irreparable ruin. But assuredly neither
he nor any other logician has a right to make such an assumption
in silence. In spite of many speculative difficulties, there is no
principle more vital to knowledge, practical and theoretical, than
the principle of “negligibility”; the principle which asserts that
sequences can be isolated and repeated, and that vast bodies of
contemporaneous facts and happenings may be wholly neglected. It is
much more important than the principle of causation, if by causation
is meant, not a working, though possibly imperfect, regularity, but the
speculative completeness implied by the phrase “universal causation” as
commonly interpreted.

It may be said, and I think with truth, that these observations
scarcely apply to a material world conceived in a purely mechanical
fashion. In such a world negligibility is theoretically measurable.
The mass of Sirius, without doubt, modifies the weight of the pen with
which I am writing. But the effect is demonstrably infinitesimal,
and negligibility is not assumed, but proved. Laplace’s calculator,
surveying the universe, would have no difficulty either in fixing
his attention on particular repetitions which exemplify the “laws of
nature,” or in regarding them as integral parts of a single mechanical
whole, whose successive phases (if the law of energy dissipation be
universal) can never be repeated.

But this does not lighten the difficulty. The world may, or may not,
be a single mechanical system; but, if it is, the fact can only be
empirically known to us through induction: and induction assumes
negligibility, and cannot, so far as I can see, move a step without it.
Choose the most perfect experiment on record, idealise its conditions
to your heart’s content; for greater security, suppose it repeated
even to weariness, how will you be advanced? There are, I suppose,
millions of circumstances, for the most part utterly unknown, which
have co-existed with all the experiments already tried, but will have
vanished before the next experiment is undertaken. Does this disturb
you? Do you ask yourself whether, among the unnumbered circumstances in
which the world of to-day differs from the world of yesterday, there
may not be one which is necessary to the expected effect? Not at all.
You brush them aside. You say they may be neglected. And doubtless you
do well. But why? Not on any grounds which observation or reasoning can
supply, not on any grounds formulated in the logic of induction, or
the calculus of chances. You trust yourself to a feeling of antecedent
probability;—the intuitive probability on whose importance I dwelt
in the last lecture, which is not the flower of experience but its
root;—and your trust will sometimes be betrayed.

The principle of negligibility, or (in terms of belief) the belief that
observed regularities may often be treated as if they were complete and
self-contained cases of cause and effect, separable from contemporary
events, is thus a necessary presupposition of concrete science; and,
like other presuppositions, it is incapable of scientific proof.
We often hear it said, indeed, that principles of this kind should
be regarded as hypotheses verified by an ever-increasing volume of
experimental proof. They are found to work; what more can be desired?

But it is not accurate to say that these and other fundamental
principles are, or ever have been, regarded either by common sense
or science as inferences from experience or as hypotheses requiring
verification. Nor is it accurate to suggest that verification differs
essentially from any other kind of experimental evidence except in
the date of its occurrence. If evidence follows conjecture, but not
otherwise, it is called verification; and though, from the point of
view of method, this chronological order is of immense importance, from
the point of view of logic it is nothing. A doubtful conjecture (let
us suppose) is “verified” by experiment. If the experiment had come
earlier there would have been no conjecture, but there would have been
equal evidence, indeed the same evidence. It is true that without the
conjecture there might have been no experiment, and that without the
experiment there might have been no proof. But, though the conjecture
occasioned the proof, it certainly adds nothing to its force, and we
therefore come back to the question already discussed—namely, whether
principles without which no inference from experiences is possible,
can be themselves inferred from experiences?—a question to which, as I
conceive, only one answer is possible. Experiences may produce habit,
and habit may produce expectation, and this process may masquerade
as induction. But expectations thus engendered belong to the causal
series, not the cognitive. Physiology and psychology may explain them.
But they can neither be proved nor treated as axiomatic.

Axiomatic they certainly are not; nor do they possess the universality
and precision of outline which we are accustomed to associate
with axioms. It is curious, in this connection, to note that the
philosophers who are most firmly resolved to root the principle of
regularity (they ignore negligibility) in experience always insist on
giving it that absolute character which our inferences from experience
rarely possess. The notion that fundamental beliefs should be liable to
exception, should be capable of degrees, and should apply unequally
in different fields of observation, is as abhorrent to them as to any
metaphysician out of the opposite camp. One would suppose, to hear them
talk, that, unless causation be universal, experience is worthless.


IV

The region where these uncompromising doctrines show to least advantage
is human character. I do not propose to discuss causation and free
will; but I may with advantage say something on a less hackneyed
theme, namely, negligibility and foreknowledge. The thesis I desire to
maintain is that, in dealing with a human character, full foreknowledge
is theoretically impossible, even though free will be wholly absent,
and the succession of psychic states be completely determined.
Practically impossible we know it to be. But most determinists would
hold that this impossibility is due partly to our ignorance and partly
to our incapacity. We know too little either of the general laws of
mind, or of individual character, or of surrounding circumstances,
to make accurate forecasts; and, even if we possessed the requisite
information, we could not use it, owing to the irremediable
weakness of our powers of calculation. It is this contention that
I wish to traverse. I hold that, had we the supernatural powers of
Laplace’s calculator, armed with a knowledge of the human heart which
supernatural powers of observation could alone supply, we should
still fail, because we are face to face with that which is inherently
incalculable.

The contrary opinion is due, I think, to an imperfect comprehension
of the doctrines I have touched on in this lecture. All human
foreknowledge depends on detecting old sequences in a new context. The
context, of course, is always new. There is never full or complete
repetition. But, unless there be partial repetitions embedded in the
universal flux, prescience is impossible. This is the doctrine of
“negligibility.”

Now consider two illustrative examples.

First, imagine yourself standing on the edge of a valley down which
a landslip has just let loose the waters of some great reservoir
in the hills. The catastrophe is sudden in its onset, brief in its
duration, wildly irregular in its character. Even the most tumultuous
cataract retains a certain steadiness of outline: and few sights are
more impressive than the stationary waves in a great rapid. But there
is here no trace of order imposed on disorder, fixity on motion. The
rushing wall of water, spouting into foam over every obstacle it
encounters, the tossing flood that follows furiously behind, seem
in their brief violence to present the very ideal of incalculable
confusion. But we know it is not so. In the presence of such a
spectacle our calculator would not feel a moment’s embarrassment. He
could forecast without difficulty the whole scene down to its minutest
eddy; the motions of each drop obey laws with which he was perfectly
familiar; and the total effect, catastrophic though it be, is but the
sum of all these component examples of natural uniformity.

Turn now and contemplate a calmer scene. Consider the commonplace life
of a commonplace man as it develops in the untroubled prosperity of a
steady business and a quiet home. Such a career seems as orderly and
uniform as the flood I have been describing is terrible and strange.
Surely no supernatural calculator is required to cast the horoscope
of its hero: for he does, and leaves undone, the same actions, he
thinks and leaves unthought the same ideas, as thousands of his
contemporaries; and, so far as outward appearance goes, he is an
indistinguishable member of an undistinguished crowd.

Yet, in spite of this, we know him to be unique. There never has been
before, nor will there ever be again, another individual exactly like
him. A similar statement, it may be urged, can be made about our
catastrophic flood. Though this has plenty of parallels, none of them,
strictly speaking, are exact. Where, then, lies the distinction on
which I am trying to insist? Let me endeavour to mark the contrast.

If the material world be conceived as a mechanical system, the flood
in my illustration may be regarded as a piece arbitrarily cut out
of it at the whim of the spectator. It possesses no natural unity;
and, like the whole of which it is a fraction, the moving particles
which compose it do each obey laws which are (we assume) perfectly
well known, and have been endlessly exemplified. Its behaviour is the
sum of the behaviour of these several parts: and it is by estimating
their movements that our imaginary calculator can prophesy its course
with absolute exactness. He is never perplexed by the problem of
negligibility; for negligibility in such a case can be accurately
measured, and our calculator possesses all the data required for its
measurement. In short, the principle of regularity may here be applied
in its most uncompromising form; it requires no qualification, nor can
it be pressed too boldly or too far.

But the case is otherwise when we have to abandon the strictly
mechanical point of view, and investigate regions where negligibility
has a small and uncertain application. Such a region is individual
consciousness. This possesses a natural or intrinsic unity. Its phases
are never precisely repeated; nor can it be regarded as a collection
of independent elements, the sequences of which may be separately
examined, verified, and repeated. Not only is the whole unique, but the
parts are unique also. Or, perhaps it would be more accurate to say
that there _are_ no parts possessing a fixed character of their own
apart from the whole. Not only is everything qualified by everything
else, but few of these qualifications are negligible. Perfect
repetition is therefore impossible, and our calculator, whatever his
powers, could never feel at home with his premises, or secure in his
conclusions. The present would always be new, and the future would
always be doubtful.

If this seems paradoxical it is, I think, mainly for two reasons. In
the first place, such a doctrine seems inconsistent with the fact that,
whatever Laplace’s calculator could do, humbler beings like ourselves
manage somehow or other to forecast the behaviour of our neighbours
with some small measure of success. This, no doubt, is true. But it
is in part because the alternatives of behaviour are very few and
very definite compared with the infinitely graduated variations of
thought, will, and feeling. Action is “canalised.” It can flow only
along channels engineered for it by circumstances, and among these the
choice is commonly small. But the character which lies behind action is
complex beyond all power of analysis, and variable beyond all powers
of anticipation. The routine which is unwaveringly pursued from month
to month and year to year is pursued each day in a different spirit:
and often a critical hour strikes when some well-drilled creature of
custom, to his own surprise and the scandal of his friends, deserts the
ancient ways and wanders suddenly forth into the unknown.

Of course, these violent aberrations are the exception. The more
familiar experience is that, in an orderly society, the alternatives of
action which need be taken into account are few, and the “limits of
deviation” narrow. Often, therefore, we can anticipate conduct without
any real insight into the depths of character or the complexities of
motive from which the conduct springs. And truly this is fortunate;
for, if mutual comprehension were necessary to social intercourse, how
could society exist?

But there is another reason why we take little note of the distinction
I am endeavouring to draw between the calculable uniformities of a
material world and the incalculable regularities of psychic life.
The distinction is rather speculative than practical. It does not
affect the routine of daily existence. For, although the course of
the material world is calculable, we mortals have neither the time
nor the knowledge nor the mental powers required to calculate it. We
behave, therefore, towards nature as we behave towards man. We content
ourselves with approximations, with analogies, with resemblances.
Even if we had the power, we should not have the time to resolve the
movement of all the bits of matter with which we have to deal from
minute to minute into the exact sequences of which they are composed.
We would not if we could. We apply rough methods; we are satisfied
with imperfect results. Nor are these results always more imperfect in
the psychic than in the material sphere of observation. The ways (for
example) of British weather are even more mysterious than the ways of
British men. Why, then, should we interest ourselves in a speculation
which tells us, however truly, that perfect foreknowledge is
theoretically possible in the first case, but theoretically impossible
in the second? In practice it is impossible in both. And with this we
must be content.

And yet the speculation is interesting. For the distinction between the
two cases lies deep. It has nothing (let me say again) to do with free
will. It has nothing to do with our ignorance of facts. It has nothing
to do with our intellectual insufficiency. It is due to a fundamental
difference between the uniformities of matter and the regularities of
mind. Perfect foresight requires perfect repetition, and in the psychic
sphere perfect repetition can never happen. Every self is unique; all
its experiences are unique; and these unique wholes are not compounded
of interchangeable elements obeying identical laws. They do not alter
by mere addition, subtraction, or rearrangement of parts. They grow.
And the sequence of one phase upon another faintly resembles that
which would prevail in the imaginary universe of which I spoke just
now, the universe where all contemporaneous events were treated as
the single effect of the immediate past and the single cause of the
immediate future. Of such a universe I observed that it would have a
history, but could have no science. And though we cannot go so far when
speaking of psychic unities, though we cannot rule out psychology or
sociology, it must be admitted that no regularities which observation
discloses can ever possess the precision which we theoretically
attribute to material mechanism. Instructive likenesses we shall find
in abundance, complete determination we may assume if we please; but
“laws,” in the full and strict sense of the term, we shall not find,
for they are not there.


NOTE

 The shortcomings of mechanism have been discussed by M. Bergson in a
 manner which no other thinker is likely to rival. He has, however,
 usually dealt with the subject in connection with _freedom_; whereas
 in this section I have only dealt with it in connection with
 foreknowledge, repetition, and what I have termed the doctrine of
 “negligibility.” He approaches it from the side of reality. I approach
 it from the side of inductive inference and the law of universal
 causation.


FOOTNOTES:

[11] Extract from Morgan’s “Habit and Instinct,” page 40. “A young
chick two days old, for example, had learnt to pick out pieces of
yolk from others of white of egg. I cut little bits of orange-peel of
about the same size as the pieces of yolk, and one of these was soon
seized, but at once relinquished, the chick shaking his head. Seizing
another, he held it for a moment in the bill, but then dropped it and
scratched at the base of his beak. That was enough; he could not again
be induced to seize a piece of orange-peel. The obnoxious material
was now removed, and pieces of yolk of egg substituted, but they were
left untouched, being probably taken for orange-peel. Subsequently, he
looked at the yolk with hesitation, but presently pecked doubtfully,
not seizing, but merely touching. Then he pecked again, seized, and
swallowed.”




LECTURE IX

TENDENCIES OF SCIENTIFIC BELIEF


I

In the sixth and eighth lectures of this course I dealt with two
inevitable beliefs which lie at the root of all science and all
practice—the beliefs that an independent, or, as it is commonly called,
an “external” world exists, and the belief that the world, whether
external or internal, has at least a measure of regularity. In the
seventh lecture I interpolated a discussion upon probability; and
showed, or attempted to show, that we must take account of a kind of
probability other than that which, in the hands of mathematicians, has
so greatly contributed to knowledge.

If, now, we consider these subjects in their mutual relation, we
perceive that an “inevitable” belief is one which possesses the highest
degree of this intuitive probability. These are two descriptions of the
same quality—one emphasising the objective, the other the subjective,
aspects of a single fact.

But this at once suggests a further inquiry. Probability is evidently
a matter of degree. A belief may be more probable or less probable.
Inevitableness, on the other hand, seems at first sight to be
insusceptible of gradation. It is, or it is not. Yet this extreme
definiteness vanishes if we regard it as a limiting case—as the last
term of a series whose earlier members represent varying degrees of
plausibility. On this view we should regard our beliefs about the
universe as moulded by formative forces, which vary from irresistible
coercion to faint and doubtful inclination. Beliefs in the reality of
the external world and in its regularity are important products of the
first. I now propose to call attention to some beliefs which are due
to the less obvious action of the second. Both kinds, whether capable
of proof or not, are more or less independent of it. Both are to be
regarded rather as the results of tendencies than as the conclusions of
logic.

I am well aware that a doctrine like this will find few admirers among
systematic thinkers. Inevitable beliefs which are fundamental without
being axiomatic; which lack definiteness and precision; which do not
seem equally applicable to every field of experience; which do not
claim to be of the essence of our understanding, like the categories
of the critical philosophy, or the so-called laws of thought, have
little to recommend them to philosophers. And when inevitableness is
treated as merely an extreme form of plausibility, when guidance is
discovered in tendencies which are weak and of uncertain application,
leading to error as well as to truth, their objections will scarcely be
mitigated.

Many of those who look at these problems from (what they deem to
be) a strictly scientific point of view are not likely to be more
favourable. Their loyalty to experience takes the form of supposing
that men accumulate knowledge by peering about for “sequences” among
“phenomena,” as a child looks for shells upon the beach—equally ready
to go north or south, east or west, as the humour of the moment moves
him. They would regard any antecedent preference for this or that
sort of explanation as a sin against the categorical imperatives of
intellectual morals. Science, they think, should have no partialities:
and as the honest investigator “entertains no belief with a conviction
the least in excess of the evidence,”[12] so he will resist any leaning
toward one kind of conclusion rather than another. Such is their view
of scientific duty. Scientific practice, however, has been otherwise.

That the practice of ordinary humanity has been otherwise seems indeed
sufficiently plain. The folk-lore, the magic, and the religions of
primitive races, with all their unborrowed resemblances, are there to
attest it. But these (you will say) are superstitions. The objection
is not, I think, relevant; yet, for the sake of peace, let us pass to
what is not regarded as a superstition, namely, morality. Here you
have the singular spectacle of a close agreement among moralists as
to the contents of the moral law, and a profound disagreement as to
the grounds on which the moral law is to be accepted. Can the power of
“tendency” be better shown? Can there be a clearer illustration of the
way in which it may guide belief and anticipate proof?


II

But our business to-day is neither with magic nor morality. It is
with physical science. When we survey man’s strivings to understand
the world in which he lives, can we detect any secular leanings
towards certain types of belief, any deep-lying inclination to guess
by preference in one direction rather than another? We surely can.
There are some answers, for example, which we refuse to take from
experiment and observation. I have already referred to one such case
in connection with causation. No man of science can be provoked, by
any seeming irregularities, into supposing that the course of nature
is subject to lapses from the rule of perfect uniformity. Consider,
again, another case, where the tendency is far less strong, but where
few can doubt that it is real. I refer to the deep-seated reluctance
felt by most physicists to accept as final any scientific explanation
which involves a belief in “action at a distance”—a reluctance which is
the more remarkable since action at a distance seems a familiar fact of
experience, while action by contact, when you attempt to work it out in
detail, seems hard to comprehend.

But there are tendencies feebler and less general than these which
give much food for reflection. Consider, for example, the familiar
history of atomism. At least as far back as Democritus we find the
confident assertion that the world consists of atoms, and that its
infinite variety is due to the motions and positions of immutable
and imperceptible units, which, if they are not exactly alike, at
least differ less among themselves than do the visible objects into
which they are compounded. Through successive centuries this theory
never died. With the revival of learning and the beginning of modern
science it burst into fresh life. It was believed in firmly by Bacon,
the prophet of the new era. It was treated as almost self-evident
by philosophers like Gassendi and Hobbes. Boyle held it in its most
uncompromising form. Newton assumed it without question. After a period
of varying fortunes in the eighteenth century, a modification of it in
the hands of Dalton started a new era in chemistry. Taken over by the
physicists, it now lies at the root of the modern theory of gases and
liquids; the modern theory of matter, the modern theory of heat, and
the modern theory of electricity.

This is a very strange story; and it is not really made less strange by
those who emphasise the differences between the atoms of Democritus,
which are the theme of its first chapter, and the electrons of Sir
Joseph Thomson, which appear in its last. Different indeed they are;
but, though the difference be great, the agreement is fundamental.

There are some who think that the achievement sung by Lucretius is
lessened by showing that the ancients who believed in atoms had no
experimental warrant for their convictions. And this is perfectly true.
They had not. Nor had Bacon, nor Gassendi, nor Hobbes, nor Boyle, nor
Newton. But this only brings into clearer relief the point I desire to
emphasise. If experience did not establish the belief, whence came it?
If it represents nothing better than an individual guess, why did it
appeal so persistently to leaders of scientific thought, and by what
strange hazard does it turn out to be true? It is certainly curious
that Tyndal, in a once famous address to the British Association at
Belfast, should have sketched the story from Democritus to Lucretius,
and from Lucretius to 1874, without ever putting these questions to his
audience, or, so far as I know, to himself.

But the Atomic Theory is by no means the only example of tendencies
which have played an important part in the evolution of science. There
are other beliefs, or kinds of beliefs, of the most far-reaching
importance which have almost exactly similar characteristics. They
anticipate evidence, they guide research, and in some shape or other
they turn out to be true.

Consider, for example, the group of beliefs which may be described
generally as beliefs in persistence, or beliefs in conservation—the
kind of belief which has been applied at different periods, and by
different schools of scientific thought, to matter, mass, bulk, weight,
motion, force, heat, and energy. As every one knows, these ascriptions
have not always been correct. But this only emphasises the strength of
the tendency. Weight was at one time supposed to be invariable. We know
now that the weight of a body varies with its position relatively to
other bodies. It is different, for example, at the poles from what it
is at the Equator. But how was the error discovered? Not by experiment.
There were experiments, no doubt. But those who undertook them already
believed in the law of gravitation; and the law of gravitation made it
necessary to distinguish the mass of any given fragment of matter both
from its weight and from the occult quality of gravity, which is one
of the factors on which its weight in any given situation depends. The
desire for conservation was not, however, defeated; since physicists,
till within the last few years, regarded both mass and gravity as
unalterable characteristics of all material bodies.

Again, consider the case of heat. This also has been regarded by
powerful schools of scientific thought as a substance that was
“conserved.” It is so regarded no longer. But is the inclination to
believe in conservation thereby defeated? Not at all. Though heat may
vanish, energy remains, and heat is a form of energy.

This doctrine of the conservation of energy is indeed the crowning
triumph of the tendency I am discussing, and provides the best
illustrations of its strength. For natural philosophers, intent on
finding conservation wherever they could, started too boldly on their
quest. Descartes regarded the conservation of motion as a self-evident
inference from the rationality of God. It is true that he neither
had experimental evidence of his doctrine, nor could he, under any
circumstances, have obtained it; for the energy of motion, as he
incorrectly described it, is not conserved. Leibnitz described it
correctly, and had as great a confidence as his predecessor in its
conservation, and as little proof to support him. So confident indeed
was he, and so independent of experimental evidence was his faith, that
he dogmatically asserted that, when motion seemed to disappear, what
was lost by the bodies which we see, was exactly taken up by their
component elements which we do not see; so that nothing in the nature
of what he called _vis viva_ was either lost or created. That this
transformation of energy from molar to molecular motion is constantly
occurring we now have sufficient proof. But Leibnitz had no proof; and
apparently thought none was required other than the Cartesian deduction
from the rationality of God. He made a bold anticipation of experience,
with nothing to support him but _a priori_ inclination.

His anticipation, however, was not only bold; it was fortunate. Kinetic
energy may really be transformed from molar to molecular motion, and
suffer no variation. It is conserved. On the other hand, it may not. It
may altogether cease, and what becomes of conservation then?

The scientific formula which satisfies both the facts of the case and
our desire for conservation is well known.[13] Energy, we are taught,
is of two kinds: kinetic and potential energy—energy in act and energy
in possibility. Each may turn into the other, and is continually so
turning. Each, therefore, may vary in quantity, and does vary in
quantity. It is only their sum which is indestructible.

Few scientific generalisations have been more fruitful; few have been
accepted on more slender evidence; none are more certain; none more
clearly illustrate our natural appetite for beliefs of conservation.
For, indeed, to the over-critical this sort of conservation must needs
leave something to be desired. When we assert the indestructibility of
matter we mean that a real entity continues through time unchanged in
quantity. But the word has a less obvious meaning when it is applied
to energy. The propriety of describing motion as energy seems indeed
clear enough; and if all energy were energy of motion, and if energy of
motion were always conserved, the conservation of energy would be on
all fours with the conservation of matter. But this is not the case.
In spite of Leibnitz, the amount of _vis viva_ is not indestructible.
What, then, happens when some of it is destroyed? In that case, says
science, energy changes its form but not its quantity. Energy of
motion becomes energy of position. What was kinetic becomes potential;
and, as the transformation is effected without loss, the principle of
conservation is saved.

When, however, energy thus becomes potential, in what sense does it
still exist, and why do we still call it energy? Energy suggests
“doings” and “happenings.” In the case of “potential” energy there are
no “doings” and no “happenings.” It is “stored”; and stored it may for
ever remain, hibernating (as it were) to all eternity, neither changing
nor causing change.

I do not quarrel with this; but I ask myself why “energy” should be
treated more leniently than “force.” Though force is now known not to
be “conserved,” ordinary thought attributes to it a certain continuity
of existence even when it does not show itself in motion. Force may be
exerted though nothing moves; as, for example, by a book pressing on a
table. But this view is profoundly unsatisfactory to many scientific
thinkers. For them force is nothing apart from “acceleration”; it
does not represent a cause, it only measures an effect. And if
in our ordinary moments we think otherwise, this (they think) is
simply because we illegitimately attribute to matter something which
corresponds to muscular effort in man.

It is not, perhaps, so easy as these critics suppose to extrude from
scientific thought (I say nothing of scientific language) this notion
of latent force—force which would produce movement if it could; and is
actively, though imperceptibly, striving to show itself in motion. But
why should they try? They welcome potential energy—why should they
anathematise latent force?

I think the answer is to be found in the fact that, whether force has,
or has not, any being apart from acceleration, it is certainly _not_
conserved; while, if energy be as real when it is potential as when it
is kinetic, it certainly _is_ conserved. A lapse into anthropomorphism,
therefore, is without excuse in the first case, while a lapse into
metaphysics is justified in the second. Any heresy may be forgiven, and
any evidence is worth respectful attention when conservation is the
thing to be proved.

I have sometimes amused myself by wondering what would have happened
about the year 1842 if the conservation of energy had been a
theological dogma instead of a scientific guess. Descartes, as I
mentioned just now, inferred the conservation of motion from the
attributes of God. Colding and Joule used the same argument in favour
of the conservation of energy. Now, if a belief in the conservation of
energy had been an integral part of religious orthodoxy in the early
forties of the last century surely some positivist philosopher would
have used Joule’s first investigation on Work and Heat to upset the
very dogma they were intended to establish. “Here” (he would have
said) “you have a believer in these metaphysico-theological methods
of discovering the laws of nature; and mark what happens. In true
medieval fashion he begins with some fanciful deductions from the
way in which he thinks God must have made the world. Fortunately,
however, though his principles are medieval, his methods are modern.
Not only is he a most brilliant experimenter, but he has the courage
to put his own speculations to an experimental test. He takes the
minutest precautions, he chooses the most favourable conditions, and
what happens? Does he prove his case? Do his results square with
his theories? Does he find a fixed relation between work and heat?
Does he justify his views of God? Not at all. Between his lowest
determination of the mechanical equivalent of heat, and his highest,
there is an immense and lamentable gap. What does he do? He takes their
mean value:—a very proper method if he knew there _was_ a mechanical
equivalent of heat; a very improper method if the reality of such an
equivalent was the thing to be proved. Clearly, if he had not put his
theological opinions into his scientific premises when he began his
experiment, he never would have got them out again as scientific
conclusions when he had reached its end.”

For my own part, I think this imaginary critic would, at that date,
have had something to say for himself—supposing always we are prepared
to accept his presuppositions about scientific method. If sound
reason and intellectual integrity require us to follow the lead of
observation and experiment with no antecedent preference for one class
of conclusions rather than another, then no doubt Joule and a long line
of distinguished predecessors were the spoilt children of fortune. They
made their discoveries in advance of their evidence, and in spite of
their methods. If they turned out to be right, or, at least, on the
right road, what can we do but criticise their credulity and wonder at
their luck? unless, indeed, their luck be a form of inspiration.

Before leaving beliefs of conservation, I must say one more word
about the most famous of them all—the belief in the conservation of
matter. This was an important article in the scientific creed of the
early atomists, who had no better evidence for it than they had for
the Atomic Theory itself. The material “substance” of the medieval
Aristotelians was, I imagine, also conserved; though as all that could
be known about it were its qualities, and as these were not necessarily
conserved, the doctrine in practice did not, perhaps, amount to
much. Then came the theory which, chiefly in the hands of Boyle[14]
at the end of the seventeenth century, initiated modern chemistry.
What was conserved, according to this view, was not a metaphysical
substance with detachable qualities, but elementary kinds of matter
with inseparable qualities; and out of these qualified entities was
compounded the whole material universe. I may incidentally observe
that a company promoter who should issue a prospectus based on no
better evidence than Boyle could advance for this tremendous theory
would certainly be in peril of the law. Yet Boyle was right: and,
notwithstanding subsequent developments, his conjecture remains the
corner-stone of modern chemical research.

Now, what is it that we intend to assert when we say that matter is
conserved, or is indestructible? We certainly do not mean that its
qualities never suffer change: for most of those which are obvious
and striking are always liable to change. If you sufficiently
vary temperature or pressure; if you effect chemical composition
or decomposition, the old characteristics will vanish and new
characteristics will take their place. What, then, is conserved?

In the first place, the lost qualities can (in theory) always be
restored, though not always without the expenditure of energy. Water
never ceases to be convertible into steam, nor steam into water. The
characteristics may vanish, but in appropriate conditions they will
always reappear.

Now science, as we have just seen, is tolerant of this notion of
latency or potentiality, and is ready enough to use it in aid of
beliefs in conservation. It was so used in connection with heat when
heat was regarded as a material substance. It is still so used in
connection with energy, which is sometimes described as an immaterial
substance. But (as I have already noted) it has never been so used
in connection with matter. The reason, I suppose, is that the
conservation of matter is much more a belief of common sense than the
conservation of energy. Energy is a conception which has but recently
been disengaged from other conceptions, like force and momentum, and
has but recently been associated with heat, with chemical reactions,
with changes of physical phase, and with electro-magnetic phenomena.
It is, therefore, a remote and somewhat abstract product of scientific
reflection; and science may do what it will with its own.

The notion of matter, on the other hand, is the common possession of
mankind. Whatever difficulties it may present to reflective analysis,
it presents none to our work-a-day beliefs. We are quite ready to
regard it as indestructible; but we are not ready to combine this
conviction with the view that it possesses no single characteristic
which may not be temporarily etherealised into a “potentiality.” On
such terms the eternal and unchanging identity of this or that parcel
of matter would seem a difficult and elusive doctrine, inappropriate
to the familiar and substantial world in which we suppose ourselves to
live. A belief in the conservation of matter has therefore always, or
almost always, carried with it a belief in the unchanging continuity of
at least _some_ material qualities; though as to what these qualities
are there has been much dispute.

Descartes, though not consistent, found unchanging continuity in the
attribute of size; so also did Hobbes. I presume that the older
atomists, who explained the appearances of matter by the shape of its
constituent atoms, would have regarded both atomic form and atomic
magnitude as persistent. But it was the assumption that the same piece
of ponderable matter always possessed the same gravitating power, and
that the same gravitating power was always associated with the same
mass, which, in the hands of Lavoisier, made so great a revolution in
eighteenth-century chemistry. Matter might change its size, its shape,
its colour, its phase, its power of acting and reacting; but its mass
and the quality which caused its weight it could not change; these
characteristics were always associated with each other, and were never
in abeyance.

To Lavoisier this double principle seemed self-evident. It was not
a hypothesis that required testing, but a touchstone by which other
hypotheses might safely be tested. If, in the course of some chemical
operation, weight increased, then no further proof was required to show
that mass had increased also, and that matter had been added. If, on
the other hand, weight diminished, then no further proof was required
to show that mass had diminished also, and that matter had been
subtracted. Whatever other qualities matter might gain or lose, mass
and gravity were indestructible and unchanging.

Men of science seemed, on the whole, content silently to assume these
principles of conservation without inconveniently raising the question
of evidence. Philosophers have not always been so cautious. Kant
supposed himself to have demonstrated them _a priori_. Schopenhauer
followed suit. Spencer declared their contraries to be inconceivable.
Mill said they were proved by experience. In short, all these eminent
thinkers vied with each other in conferring upon this doctrine the
highest honours permitted by their respective philosophies. But
apparently they were hasty. Recent discoveries have changed our point
of view. Mass (it seems) is no longer to be regarded as unchanging.
When bodies move at speeds approaching the velocity of light their
mass rapidly increases; so that this quality, which is peculiarly
characteristic of matter, must be removed from the category of those
which persist unchanged, and placed in the category of those which
change but can always be restored. Are we so to class gravitation?
Would the weight of a body moving nearly at the speed of light increase
as, in like circumstances, its inertia increases? If the answer is
“no,” then the link is broken which has for long been thought to
connect gravity and mass. If the answer is “yes,” then what Kant
regarded as certain _a priori_ is false; what Spencer regarded as
“inconceivable” is true; another carrier of “persistence” is lost, and
some fresh characteristic must be found which will remain unchanged
through all time, and under all conditions.

If this characteristic should turn out to be electric charge, what
a curious light it will throw upon our tendency to “beliefs of
conservation”[15]. After long seeking for some indestructible attribute
of matter; after taking up and rejecting size, shape, weight, mass,
and (perhaps) impenetrability, we shall at last find the object of our
quest in a conception which has (I suppose) been clearly realised only
within the last hundred years, about which our senses tell us nothing,
and of which the general run of educated mankind are still completely
ignorant!


III

It is possible, but not, I hope, probable, that some hasty reader may
suppose that in this and the preceding lectures I am recommending a
new method or instrument of discovery. “If you want to reach truth,
follow your unreasoned inclination,” may be his summary of my doctrine:
brief—but also unjust.

Of the manner in which discoveries are going to be made I say nothing,
for I know nothing. I am dealing with the past: and in the historic
movements of scientific thought I see, or think I see, drifts and
currents such as astronomers detect among the stars of heaven. And,
as the law of gravitation will hardly (I suppose) explain the last,
so observation, experiment, and reasoning will hardly explain the
first. They belong to the causal, not to the cognitive, series; and the
beliefs in which they issue are effects rather than conclusions.

Those who feel little sympathy for such a view may be inclined to
regard the relatively faint inclinations dealt with in this lecture
as ordinary scientific hypotheses confirmed by ordinary scientific
methods. This view, as I have already observed, is not applicable
to the inevitable beliefs dealt with in earlier lectures. Whatever
philosophers may say after the event the conviction that we live in an
external world of things and persons, where events are more or less
regularly repeated, has never been treated as a speculative conjecture
about which doubt was a duty till truth was proved. Beliefs like these
are not scientific hypotheses, but scientific presuppositions, and all
criticism of their validity is a speculative after-thought. The same
may be said, though with less emphasis and some qualification, about
beliefs fostered by the intellectual tendencies considered in this
chapter. These, as we have seen, are many. They are often inconsistent;
they are never inevitable; and they perpetually change their form under
the pressure of scientific discovery. Atomism in one shape follows
atomism in another; doctrines of conservation rise, fall, and rise
again; incredulity about “action at a distance” breeds explanations
whose failure (in the case of gravity) leaves the hope of final success
untouched.

Now, it would be an error to say that science does not, when it can,
apply to these various theories its ordinary methods of verification.
They are in a different position from inevitable beliefs, which can
hardly be verified because the process of verification assumes them.
Yet they must not be confounded with ordinary scientific hypotheses,
for they are something more and something different. Like these, they
are guesses, but they are guesses directed, not by the immediate
suggestion of particular experiences (which indeed they sometimes
contradict), but by general tendencies which are enduring though
sometimes feeble. Those who make them do not attempt the interrogation
of Nature wholly free from certain forms of bias. In cross-examining
that most stubborn and recalcitrant of witnesses they never hesitate
to ply her with leading questions; and, whether this procedure be
logically defensible or not, no lover of truth need regret its results.

Readers of M. Bergson’s “Creative Evolution” may remember the picture
he draws of the _élan vital_—the principle of life—forcing its way
along different paths of organic evolution, some without issue or
promise of progress; others leading on through regions hitherto
untraversed to ends remote and unforeseen. The secular movements of
science, as I conceive them, somewhat resemble this process, even
though it be faintly and at a distance. There is in both a striving
towards some imperfectly foreshadowed end; and in both the advance is
irregular, tentative, precarious, with many changes of direction, and
some reversals. Yet I would not press the parallel over-far or plunge
too deeply into metaphor. It is enough to say that as, according to M.
Bergson, the course followed by organic evolution cannot be wholly due
to Selection, so the course followed by scientific discovery, as I read
its history, cannot be wholly due to reasoning and experience. In both
cases we seem forced to assume something in the nature of a directing
influence, and (as I should add, though perhaps M. Bergson would
not) of supramundane design. And if “a Power that makes for truth”
be required to justify our scientific faith, we must surely count
ourselves as theists.


NOTE

 _Extracts from a letter from Sir Oliver Lodge on certain passages in
 this lecture relating to Energy and its transformations._

       *       *       *       *       *

 You say, on page 226, “Energy, we are taught, is of two kinds: kinetic
 and potential energy—energy in act and energy in possibility.”

 So long as emphasis is laid upon the words “we are taught,” I have
 no objection. People _have_ taught that, though I strongly object to
 such teaching, because I object to the idea “Energy in possibility” or
 “possible Energy” of any kind. I teach the identity of Energy in much
 the same terms as the identity of Matter; not merely the conservation,
 with the idea that one quantity can disappear and another quantity
 reappear. It is not another quantity, but the same; though it may
 have been locked up for any length of time. But then it has not been
 usually taught so, and I think you are dealing with what is usual.

       *       *       *       *       *

 Again, you say on page 227, “Energy suggests ‘doings’ and
 ‘happenings.’” No, say I, _activity_ suggests doings and happenings,
 and activity is Energy in transformation. Energy alone is something
 stored, like Capital. The earth’s rotational energy, for instance, is
 stored just as really as, and for a longer time than, the vegetation
 of the carboniferous epoch.

 Lower down you observe that “Force may be exerted though nothing
 moves.” Certainly it may, when resisted by an equal opposite force.
 But I fully admit that a lot of nonsense has been talked about the
 acceleration measure of force, as if it were the only measure, and
 that some criticism on this procedure is useful. But I should not
 speak of “latent” force; it is real force you have in mind, or at
 least real stress—_i.e._ two equal and opposite forces. It is latent
 Activity which becomes active when the other factor, viz. Motion,
 is supplied or allowed—_e.g._ by the release of a bent bow, or a
 wound-up spring, or a raised weight.

 So it is also with the Energy of a fly-wheel. That, too, is latent
 Activity until the other factor, viz. Force, is supplied, _i.e._
 when it is employed to overcome resistance, and therefore do work.
 Otherwise its Motion will be stored to all eternity.

 In short, activity, or doing of work, has two factors, Force and
 Motion. When both are present, work is done; when either is present
 alone, Energy is stored. Static Energy is the Force factor, with the
 possibility of a certain range of effectiveness understood; like a
 head of water, for instance, a certain height above the sea. Kinetic
 Energy is the Motion factor, with a certain inertia or possibility of
 Force understood; not Motion alone, but a mass in motion, so that it
 may be able to overcome resistance.

 There is no real reason why one form of Energy should be considered
 more “actual” or real than another; our eyes appreciate the one form,
 our muscles could appreciate the other.

       *       *       *       *       *

 In considering cases of Potential Energy, it is wise to realise that
 our knowledge about Gravitation is altogether too vague to make the
 case of a raised weight useful. And our knowledge of solid elasticity,
 though not so insignificant, is small enough to make the case of a
 bent bow or wound spring not very easy for fundamental contemplation.
 A case of chemical Energy, like gun-cotton, is in much the same
 predicament.

 But a typical and satisfactory example of Potential Energy is the
 case of a vessel of compressed air. Here is Energy stagnant enough,
 and violent enough when released, and one that can be locked up
 apparently to all eternity, and yet released by the pulling of a
 trigger. It represents, however, a case of which we know something
 concerning the internal mechanism; and we have learnt that in this
 case the force statically exerted on the walls of a vessel is really
 a kinetic bombardment of the molecules. In other words, we recognise
 in this case that Potential Energy is ultimately resolvable into
 Kinetic. It may be so in the other cases. And on Kelvin’s Kinetic
 Theory of Elasticity, which he showed a tendency in later life to
 abandon, all strain or stress in Ether may be ultimately due to its
 ultramicroscopic vortex circulation.

 But none of this is yet proven.

       *       *       *       *       *

 The general argument of your lecture deals with the ease with which
 certain general propositions are accepted as it were intuitively,
 without real conclusive evidence. I am entirely with you. And the way
 we feel secure about general laws, when adequate evidence for them is
 really impossible, has often struck me as remarkable. Even when facts
 appear to go against them, we question the facts, and find after all
 that in so doing we have been right.


FOOTNOTES:

[12] See Lecture VI.

[13] See note at the end of the Lecture.

[14] I got this view of Boyle’s relation to modern chemistry from
Ostwald’s work.

[15] In this chapter, especially in that part of it which deals with
beliefs of conservation, I am greatly indebted to Meyerson’s “Identité
et Réalité.” This acute and learned work is not written from the
same point of view as that which I have adopted; but this in no way
diminishes the amount of my obligation to its author.




PART IV

_SUMMARY AND CONCLUSION_




LECTURE X

SUMMARY AND CONCLUSION


I

Now that we have reached our closing lecture, those who have followed
the course from the beginning may, on looking back, find themselves
somewhat bewildered by the variety of subjects which I have asked
them to consider. Art, History, Morals, the Theory of Probability,
the Logic of Perception, the presuppositions of Science, have all
been touched on. Themes that might fill volumes—nay, that have filled
volumes—are made the text for an hour’s discourse. Introduced one after
the other with breathless rapidity, each for a moment has been shown
under the limelight, and then hurried off the stage to make room for
its successor. It seems hard to believe that with such diversity of
materials there can be continuity of argument. But the critic who would
judge the matter fairly must bear in mind the title of the course,
and the purpose for which it has been delivered. My desire has been
to show that all we think best in human culture, whether associated
with beauty, goodness, or knowledge, requires God for its support,
that Humanism without Theism loses more than half its value. Though,
therefore, the subjects discussed are embarrassing in their variety,
no diminution of their number seems possible. The argument would have
broken down had I confined myself to a narrower scope—had I, for
example, been content to show the importance of Theism for morality,
leaving untouched its importance for science and æsthetic. Such a
limitation would have shattered the whole design. No doubt there are
precedents for such a procedure. Kant, for instance, kept God out of
the critique which dealt with ordinary knowledge, while giving Him a
place of honour in the critique which dealt with the moral law. But
the procedure has always seemed to me singularly artificial, even in a
philosophy which is artificial through and through. In any case, such
a limitation is quite inconsistent with the scheme of these lectures.
This could not be accomplished by setting up a departmental Deity—even
were his department the whole province of ethics. Right conduct is
much, but it is not all. We not only act, but we know, and we admire;
nor could I be quite content with any form of Theism which did not
sustain in every essential part the full circle of human interests.


II

But when all explanations have been given, and all excuses made,
I am well aware that in the actual presentation of my case I have
introduced so much illustrative material, and of this material so much
is disputable, that some of my hearers may feel themselves distracted
rather than enlightened by the number of seemingly subsidiary points
of which they are asked to take account. I trust such persons are in a
minority; and that, on the whole, my main contention will seem enriched
and strengthened, not embarrassed or confused, by the manner of its
exposition. Nevertheless, it may not be amiss, before I bring the
course to an end, to restate the most important points in the general
case I have endeavoured to present.

The root principle which, by its constant recurrence in slightly
different forms, binds together, like an operatic leit-motif, the
most diverse material, is that if we would maintain the value of
our highest beliefs and emotions, we must find for them a congruous
origin. Beauty must be more than an accident. The source of morality
must be moral. The source of knowledge must be rational. If this be
granted, you rule out Mechanism, you rule out Naturalism, you rule out
Agnosticism; and a lofty form of Theism becomes, as I think, inevitable.

It is, I imagine, the application of this method to knowledge which
will be most generally resented by those who refuse to acknowledge its
validity. In the case of beauty, for example, the point will seem of
small importance to those for whom art means little. It may not greatly
impress many of those for whom art means much. For it proclaims no new
canons of taste. It belittles no æsthetic school. It asks no critic to
revise his judgments. It touches the interests neither of artist nor
author. It may well be ignored.

With ethics the case is somewhat different. There are, no doubt,
sceptics in religion who treat scepticism as a luxury which can be
safely enjoyed only by the few. Religion they think good for morals;
morals they think good for society; society they think good for
themselves. Such persons may well treat the opinions expressed in
the lecture on ethics with benevolent disagreement. But there are
more robust thinkers who will not be so lenient. They will reject as
intolerable the idea that the morality they desire to preserve depends
on a religion they desire to destroy; and any doctrine which, like
the present, binds the two more closely together will encounter their
uncompromising hostility.

Nevertheless, it is the lectures dealing with intellectual values that
will rouse, as I suppose, the most serious opposition. The endeavour
to treat our beliefs about the world and our beliefs about God as
interdependent will seem to many extravagant, even unnatural. It will
be urged that, for all reasonable beings, reason must be the supreme
judge in matters of belief. It can neither resign its office nor
delegate its authority. Let it then endorse Science, as it must; and
establish Theism, if it can; but do not require it to commit the folly
of treating truths about which opinions are agreed as dependent on
conjectures about which opinions are divided.

This may be excellent advice; but it is hardly to the point. I ask
for nothing better than the supremacy of reason: not one of its
prerogatives do I desire to curtail. Indeed (as I have already
complained) it is the agnostic empiricists who most obstinately shrink
from following it to conclusions they dislike, who mutiny, like some
old-time mariners, whenever they are required to navigate unfamiliar
seas.

I have no sympathy with the singular combination of intellectual
arrogance and intellectual timidity so often presented by this
particular school of thought. I like it no better than I like the
attitude of those who declare that, since reason is bankrupt, authority
should take over its liabilities, however small be the prospect of
discharging them in full. My point of view is utterly different. And if
I urge that the criticism of common knowledge brings us ultimately to
Theism, this involves no intolerable paradox, nor indeed anything very
new or strange.

Descartes, for example, thought that all knowledge was based on clear
and distinct ideas, and that clear and distinct ideas could be trusted
because, being due to God, they were guaranteed by His truthfulness.
That there is a God possessing every perfection was independently
established by an _a priori_ argument into which I need not enter. But
the point of interest is that, though Descartes conceived himself to
have found a refuge from scepticism in the famous “I think, therefore I
am,” he could only get from this narrow assurance to general knowledge
by the use of “clear and distinct ideas” certified by divine veracity.
If, therefore, belief in one’s self was the first of truths, belief in
God was the second; and on this second truth all subordinate beliefs,
mathematical, physical, and metaphysical, were, in his opinion,
ultimately founded. In one sense, and from one point of view, this
is no doubt an exact inversion of the argument developed in these
lectures. Descartes rests the belief in science on a belief in God. I
rest the belief in God on a belief in science. Nevertheless, beneath
this contrast there is deep-lying agreement. Both views reject the
notion that we possess in the general body of common-sense assumptions
and scientific truths a creed self-sufficing and independent, to
which we may add at our pleasure Theism in such doses as suit our
intellectual palate. Both views, therefore, are profoundly divided, not
merely from all that calls itself agnostic, but from much that calls
itself religious.

I must not, however, press the parallel too far. Descartes did not,
and could not, regard our beliefs as a developing system, which is
not merely increasing by external accretion, like a crystal in its
mother-liquid, but is growing and changing through and through like
a living organism. Such conceptions were not of his age or country,
nor, if they had been, could they have been easily accommodated to
his peculiar genius. His was the mathematical temperament, always
striving for precise definitions and rigorous proof; always tolerant
of any simplification of the concrete complexities of reality, which
would make them amenable to deductive treatment. Of this, as a method,
we need make no complaint. Within due limits it is invaluable. But
Descartes, so to speak, “objectified” it. He assumed that any judgment
which could properly be described as “clear and distinct” was not only
convenient in form, but true in substance. The world, alas! is not so
made. The things which are clear and distinct are usually things of
our own creation. Definitions, abstractions, diagrams, syllogisms,
machines—such and such like are, or may be, “clear and distinct.” But
the great facts which we have not made—these, at our present level of
knowledge, are never clear and never distinct. Life, the organism,
the self, the state, the world, freedom, causality, the flow of time,
the relation between mind and body, between perceiver and perceived,
between consciousness and sub-consciousness, between person and person
(I say nothing of beauty, of virtue, or of God)—who is there will dare
to say that he either finds in these notions, or can put into them
without injury, the qualities which Descartes deemed the inevitable
marks of real and certain knowledge? Truth, for us, is a plant of
a different and of a slower growth. How much indeed of that growth
consists in discovering that what we thought was clear is in fact
obscure; what we thought was simple is in fact complex; what we thought
was distinct is in fact confused; and how helpful are such discoveries
to the augmentation of learning!

However this may be, there is nothing in the doctrine of “congruity”
which should shock those who are jealous for the supremacy of reason
and the dignity of science. It is science itself which assures us that
all premises, all conclusions, and all the logical links by which they
are connected must be regarded as natural products. It is science
itself which assures us that they belong, like all natural products, to
the tissue of causes and effects whose lengthening web is continuously
thrown off by the loom of time. It is science itself which requires us
to harmonise these two aspects of the knowing process—the one logical
and timeless; the other causal and successive.

But how are they to be harmonised if the causal series is fundamentally
non-rational? Suppose yourself able to observe the development
of beliefs in some alien being (say an inhabitant of Mars) as a
bacteriologist observes a growing colony of microbes: suppose, further,
that your observation showed how these beliefs arose from causes which
had in them no tincture of reason, and that, so far as you could see,
they were quite unsupported by any independent evidence which—_for
you_—had weight or even meaning. Would you rate their value high?
Surely not.

Now it is quite true that when we examine our own system of beliefs
we cannot imitate this attitude of complete detachment, since in the
very act of examination some of these beliefs are assumed. But we
_can_ examine the beliefs of other people, and we _do_, as a matter of
common-sense practice, rate low the value of the beliefs whose sources
we perceive to be non-rational. How, then, can we refuse to apply to
ourselves a principle of judgment which we thus apply without scruple
to our neighbours?

Whenever we do so apply it, we shall, I think, be forced to admit
that all creeds which refuse to see an intelligent purpose behind the
unthinking powers of material nature are intrinsically incoherent. In
the order of causation they base reason upon unreason. In the order of
logic they involve conclusions which discredit their own premises. Nor
is there, as far as I can see, any mitigation of this condemnation to
be looked for except by appealing to the principle of Selection. And
how far will this help us out of the difficulty?

Just so far as an imitation of intelligent purpose can be a substitute
for its reality, but no further. And how far is this? At first sight
we might suppose that, at the worst, the cognitive series and the
causal series might be harmonised on the basis of natural selection if
knowledge never aspired to rise above the level which promoted race
survival, if no faculties of knowing were trusted beyond the point
where they ceased effectively to foster the multiplication of the
species. Up to this point it would seem that, if selection be true,
there is congruity between beliefs and their origin. The sequence of
events which brought them into being suggests no doubt about their
value. This scheme of thought, therefore, though narrowly restricted,
is apparently coherent.

Yet even this modest claim must be deemed excessive: for the
speculation on which it rests does violence to its own principles.
Manifestly we cannot indulge ourselves in reflections upon the
limits of the “knowable” without using our intellect for a purpose
never contemplated by selection. I do not allege that our intellect
is therefore unequal to the task. I only say that, if it be indeed
equal to it, we are in the presence of a very surprising coincidence.
Why should faculties, “designed” only to help primitive man, or his
animal progenitors, successfully to breed and feed, be fitted to solve
philosophic problems so useless and so remote? Why, indeed, do such
problems occur to us? Why do we long for their solution?

To such questions Naturalism can neither find an answer nor be content
without one. Wearied with unavailing efforts to penetrate the unknown,
many not ignoble spirits have preached the wisdom of dulling unhealthy
curiosity by the aid of healthy labour. “Let us cultivate our gardens”
(they say), seeking no solution of the insoluble.

But the advice is ambiguous. Will the proposed remedy, in their
opinion, cure the ill, or only help us to forget it? If the latter,
then, in some circumstances and with some patients, it will doubtless
fulfil its promise. Oblivion may be attained by growing vegetables, as
by other less reputable expedients. But if absorption in daily labour
be recommended as the final stage of a rational cure, it cannot be
effectual. No rational cure is, on naturalistic principles, within
our reach. Could we empty ourselves of all that makes us men, could
we lower our intellectual level to the point where the scope of our
mental activities harmonised with their naturalistic source, we should
doubtless free ourselves from the malady of vain speculation. But
though the remedy, if applied, would be effectual, it would not be
rational. Reflective Agnosticism cannot be combined with scientific
Naturalism, because reflective Agnosticism is the product of a
process which Naturalism inevitably discredits. And if Naturalism be
incompatible even with reasoned ignorance, how can we hope to harmonise
it with the claims of reasoned knowledge?[16]

The best imitation of creative purpose, therefore, which Naturalism can
provide breaks down where it is most required—namely, at the highest
levels of value. I have just shown this in connection with our powers
of thought, and the beliefs to which they lead. But the failure is not
confined to them. It is as wide as Humanism itself. Wherever we find
great intrinsic worth, there we are in a region where the direct effect
of selection is negligible. The noblest things in speculation, in art,
in morals, possess small survival value; and, though the geniuses to
whom we owe them have added greatly to the glory of their race, they
have added but little to its animal successes. In the language of these
lectures, they are “accidental”—due neither to purpose nor to any
arrangement of causes by which purpose is successfully copied.


III

You are now in a position to judge how far the hopes held out to you at
the beginning of this course have been fulfilled, and to measure the
merits and the demerits, the claims and the limitations, of the scheme
I have endeavoured to expound.

I disowned, as you remember, any intention of providing you with a
philosophical system—not because I despise philosophical systems or
those who labour to construct them, but in part because I have none to
recommend, and in part because it seems to me doubtful whether at our
present stage of development a satisfactory system is possible.

But how (you may ask) does my point of view differ from a philosophical
system? It may be a bad system, as it certainly is a most imperfect
one. Yet, seeing that it touches on everything in heaven and earth,
seeing that its very title embraces God and man, why should it
repudiate a description which seemingly is not a whit in excess of its
pretensions?

The question thus raised is more than a merely verbal one, and a few
observations upon it may fittingly conclude the course. Note, then,
in the first place, that my scheme of beliefs does not show itself
unworthy to be considered systematic merely because it is incomplete.
All systems are incomplete. All systems, however ambitious, admit
their inability to exhaust reality. Nor is its unworthiness due to any
mere accident of execution, such as inferior workmanship or defective
learning. Its failures are essential and irremediable. They are
inseparable from “the point of view.”

Let me explain. Every system that deserves to be described as a
constructive philosophy—be it dogmatic, critical, empirical, idealist,
what you will—conceives itself not merely to be rooted in reason, but
to be rationalised throughout. The conceptions with which it works
should be sifted, clarified, defined. It should assume nothing which
requires proof. It should rest nothing (in the last resort) on faith or
probability. It should admit no inexplicable residues.

Philosophers seem to me entirely right if they think that this is what
a system ought to be; but not entirely right if they think that this
is what any system is, or has ever been. In any case, no description
could be less applicable to the point of view which I am provisionally
recommending. The philosopher refuses—in theory—to assume anything
which requires proof. I assume (among other things) the common-sense
outlook upon life, and the whole body of the sciences. The philosopher
admits—in theory—no ground of knowledge but reason. I recognise that,
in fact, the whole human race, including the philosopher himself, lives
by faith alone. The philosopher asks what creed reason requires him to
accept. I ask on what terms the creed which is in fact accepted can
most reasonably be held. The philosopher conceives that within the
unchanging limits of his system an appropriate niche can be found for
every new discovery as it arises. My view is that the contents of a
system are always reacting on its fundamental principles, so that no
philosophy can flatter itself that it will not be altered out of all
recognition as knowledge grows.

This last statement may look like a truism; but it is a truism which
few philosophers are, in practice, disposed to accept; and the
generality of mankind are perhaps even less disposed to accept it
even than philosophers. That there are beliefs which can and should
be held, with the same shade of meaning, by all men, in all ages,
and at all stages of culture, is a view to which by nature we easily
incline. But it is, to say the least, most doubtful. Language is here
no true or certain guide. Even when beliefs have not outgrown the
formulas by which they have been traditionally expressed, we must
beware of treating this fixity of form as indicating complete identity
of substance. Men do not necessarily believe exactly the same thing
because they express their convictions in exactly the same phrases. And
most fortunate it is, in the interests of individual liberty, social
co-operation, and institutional continuity that this latitude should
be secured to us, not by the policy of philosophers, statesmen, or
divines, but by the inevitable limitations of language.

This, however, by the way. The point I wish to press is that, speaking
generally, we must not conceive the development of knowledge as a
process of adding new truths to old truths, in the course of which old
truths are supplemented but are not changed. It rather resembles the
increase of some plastic body which, wherever it takes place, involves
a readjustment of every part. Add brick to brick, and you may finish
your house, yet never alter its foundation. Add belief to belief, and
you will set up strains and stresses within your system of knowledge
which will compel it to move towards some new position of equilibrium.

Sometimes, no doubt, the process is more violent and catastrophic than
this metaphor naturally suggests. Then occurs in the moral world the
analogue of the earthquake, the lava flood, and the tidal wave, which
shatter mountains and sweep cities to destruction. Men’s outlook on the
universe suffers sudden revolution: the obvious becomes incredible, and
the incredible obvious; whole societies lose their balance, and stately
systems are tumbled in the dust.

More often, however, the movements of belief are gradual. They resemble
the slow rise or fall of ancient coast-lines, where, by imperceptible
degrees, sea turns into land, or land into sea. So, without shock or
clamour, man smoothly modifies his point of view, till, gazing over the
spaces he has traversed, he greatly marvels at the change.

But we must look forward as well as backward. The spaces still to be
traversed far exceed those that have been traversed already. We can
set no limits to the intellectual voyage which lies before the race.
Even if we arbitrarily limit the life of men to that which is possible
under terrestrial conditions, we must anticipate transformations of
belief comparable in magnitude with those which already divide us
from primitive mankind. How, in circumstances like these, can we hope
to sketch, even in outline, an enduring system of philosophy? Why
should we succeed where under similar conditions the greatest of our
forefathers have already failed?

If, then, we cannot attain to a scheme of belief which, whatever be
its shortcomings, is good (so far as it goes) for all time, we must be
content with something less. We must put up with what I have called in
these lectures “a point of view.” We must recognise that our beliefs
must be provisional, because, till we approach complete knowledge, all
beliefs are provisional. We cannot claim that they are good “so far as
they go”; but only that they are as good as we are at present able to
make them. And we must recognise that the two statements are profoundly
different.

Now, if I were asked what categories or conceptions such a “point of
view” required for its expression, I should answer Providence and
Inspiration—categories for which systematic philosophy has so far
found no great use. These terms, it must be owned, are now a little the
worse for wear. Defaced and battered by centuries of hard usage, they
have suffered the fate which the current coin of popular discussion
cannot easily avoid. But they have merits negative and positive, which
make them peculiarly apt for my present purpose.

In the first place, they do not suggest a philosophy of the universe.
They openly evade the great problems of theological metaphysics. No
one, for example, would employ them in discussing the essential nature
of an Absolute God, or His relation to time, to the act of creation, to
the worlds created. They belong to a different level of speculation.

In the second place, they concentrate attention on the humanistic side
of Theism, on the relation of God to man, and to man’s higher spiritual
needs. Divine “guidance”—the purposeful working of informing Spirit—is
the notion on which emphasis is specially laid. The term “Providence”
suggests this in a broad and general way. The term “Inspiration”
suggests it in the narrower sphere of beliefs and emotions. And do not
complain that no endeavour is made to explain the mode in which divine
guidance works either on matter or on spirit. These are mysteries
as hard of solution as those which surround the action of mind on
matter, and of mind on mind. But the difficulties are difficulties of
theory, not of practice. They never disturb the ordinary man—nor the
extraordinary man in his ordinary moments. Human intercourse is not
embarrassed by the second, nor simple piety by the first. And perhaps
the enlightened lounger, requesting a club-waiter to shut the window,
brushes aside, or ignores, as many philosophic puzzles as a mother
passionately praying for the safety of her child.


IV

To some this conclusion of a long and intricate discussion will seem
curiously trivial in its unambitious simplicity. Especially will
this be true of those who accept empirical Naturalism in any of its
forms. “There is (they may admit) something grandiose about the
great metaphysical systems which appeals even to those who are least
able to accept them. It was no ignoble ambition which inspired their
architects. It was no light labour, or trivial ingenuity, which brought
them into being. On the other hand (they will say), if naturalistic
methods are more modest, naturalistic results are more secure. They aim
lower, but they reach the mark. If the long-drawn “conflict between
religion and science” has robbed us of some illusions which we abandon
with regret, the knowledge it has spared us we may hold with assurance.
But when we turn to the narrow Theism of these lectures, fittingly
couched in the outworn language of the pulpit and the Sunday-school,
can we find in it either the glory of metaphysical speculation or the
security of positive knowledge? It has not the courage to explore the
unknowable, nor the power to add to the known. It dare not fly; it will
not walk. It is neither philosophy nor science; nor does it seek the
modest security of some middle way. How, then, are we to class this
strange amalgam of criticism and credulity? What purpose can it serve?
To whom will it appeal? Whose beliefs will it alter even by a hair’s
breadth?”

These are pertinent questions. Let me try to answer them.

The customary claims of Naturalism, which I have here put into the
mouth of my imaginary critic, seem to me (as you know) to be quite
unreasonable. Otherwise I have no great objection to the statements
contained in his indictment—however little I may agree with its
spirit. In particular I admit the charge that the argument of these
lectures, elaborate as it may appear, does not after all carry us far
beyond the position occupied by uncritical piety and simple faith.
Could it be otherwise? If we build, as I build, upon our common-sense
beliefs about the natural world, our theories of the supernatural
world will surely share the defects inherent in their foundation. It
may—or may not—be possible to know all about the evolution of God as
the Absolute Idea, while lamentably ignorant of much that pertains
to the Particular. But if we begin with the Particular—and that most
imperfectly apprehended—we cannot hope to grasp the full reality of the
Absolute. On this line of advance the philosopher will not far outstrip
the peasant.

When, therefore, my supposed critic satirically asks who it is that I
hope to influence, I grant at once that it is not the plain man who
already accepts without doubt or commentary a theistic view of the
Universe. He is beyond my arguments;—perhaps above them.

Neither do I greatly hope to influence the trained man of speculation,
who has already found a theory of things which satisfies his reason,
or is sure that no such theory is within his reach. Even he may, I
trust, find in these lectures discussions of some philosophic interest.
I ask him to consider whether his system provides an honourable place
for the actual beliefs by which his waking life is ruled; whether all
the gradations of intuitive probability, from inevitable compulsion
to faint inclination, find house-room not merely in his psychology of
belief, but in his theory of knowledge; whether he is satisfied with
his logic of science, or can bring into one harmonious scheme his creed
regarded as a body of rational conclusions and his creed regarded as a
bundle of natural effects. If he replies in the affirmative his state
is the more gracious. But he is not likely to be interested in my
arguments; and assuredly they will not convert him to my views.

I need say nothing about his pretentious imitator, who, under many
names, has long been a familiar figure in certain societies. With no
deep desire for truth, and poorly equipped for pursuing it, his main
ambition is to indicate discreetly that he holds what the fashion
of the moment regards as “advanced” views in their most advanced
form. Wherein the quality of “advancement” consists, it might be
hard to determine; nor is it (in this connection) a subject worthy
of investigation. It is enough to say that “advanced” views must
have an air of novelty, must be making some stir in the world, must
be sufficiently unorthodox to shock the old-fashioned, and either
sufficiently plausible to deceive the simple or sufficiently imposing
to overawe them. I do not think that I shall find many converts among
members of this class; nor is it to them that I desire to speak.

But there are many persons, both earnest and sincere, to whom the
conclusions which modern Naturalism extracts from modern science are
a source of deep perplexity and intellectual unrest. Their mood, if
I rightly read it, is something of this kind. They would agree that
a world where God is either denied or ignored is a world where some
higher values are greatly impoverished. They would read the lectures I
have devoted to Beauty and Morals with sympathy, if not with agreement.
Life, they would admit, is but a poor thing if it does no more than
fill with vain desires the brief interval between two material
“accidents”—the “accident” which brought it into being, and the
“accident” which will extinguish it for ever. But this (they will say)
is no argument. A wise man faces facts, a good man prefers the hardest
truth to the most alluring illusion. If there be no ground for assuming
a living purpose behind the indifferent mask of nature, let us not fill
the vacancy with a phantasm of our own creation. Let us at least sink
back into the nothingness from which we rose with our intellectual
integrity undamaged. Let all other values perish, so long as rational
values remain undimmed.

Here, according to my view, lies the great illusion. Those who in all
sincerity, and often with deep emotion, plead after a fashion like
this, profoundly misunderstand the situation. They are indeed worthy
of respect. They must not be confounded with those unstable souls
who ignore God when they are happy, deny Him when they are wretched,
tolerate Him on Sundays, but truly call on Him only when life, or
fortune, hangs doubtfully in the balance. They are of a different
and more virile temper. But are they less mistaken? They search for
proofs of God, as men search for evidence about ghosts or witches.
Show us, they say, the marks of His presence. Tell us what problems
His existence would solve. And when these tasks have been happily
accomplished, then will we willingly place Him among the hypothetical
causes by which science endeavours to explain the only world we
directly know, the familiar world of daily experience.

But God must not thus be treated as an entity, which we may add to, or
subtract from, the sum of things scientifically known as the canons
of induction may suggest. He is Himself the condition of scientific
knowledge. If He be excluded from the causal series which produces
beliefs, the cognitive series which justifies them is corrupted at
the root. And as it is only in a theistic setting that beauty can
retain its deepest meaning, and love its brightest lustre, so these
great truths of æsthetics and ethics are but half-truths, isolated and
imperfect, unless we add to them yet a third. We must hold that reason
and the works of reason have their source in God; that from Him they
draw their inspiration; and that if they repudiate their origin, by
this very act they proclaim their own insufficiency.


FOOTNOTES:

[16] Let me here parenthetically remind you that again (as I observed
in an earlier lecture) the Naturalism of which I speak is Naturalism
in what, from our present point of view, must be regarded as its most
plausible shape. Those who have followed, even at a distance, the trend
of biological thought are aware that many naturalists of the highest
authority are shaken in their allegiance to natural selection. They do
not, indeed, exclude it from the evolutionary drama, but they reduce
its rôle to insignificance. Why then, you may ask, do these lectures
so constantly refer to selection, but say never a word about other
theories of organic evolution?

The answer is that selection, and only selection, really imitates
contrivance. Other theories may deal, and do deal, with variation and
heredity. But selection alone can explain adjustment; whence it follows
that selection alone can imitate design.


       _Printed in Great Britain by Hazell, Watson & Viney, Ld.,
                        London and Aylesbury._





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