The Problem of Truth
BY H. WILDON CARR
HONORARY D.LITT., DURHAM PREFACE
A problem of philosophy is completely different from a problem of science. In science we accept our subject-matter as it is presented in unanalysed experience; in philosophy we examine the first principles and ultimate questions that concern conscious experience itself. The problem of truth is a problem of philosophy. It is not a problem of merely historical interest, but a present problem--a living controversy, the issue of which is undecided. Its present interest may be said to centre round the doctrine of pragmatism, which some fifteen years ago began to challenge the generally accepted principles of philosophy. In expounding this problem of truth, my main purpose has been to make clear to the reader the nature of a problem of philosophy and to disclose the secret of its interest. My book presumes no previous study of philosophy nor special knowledge of its problems. The theories that I have shown in conflict on this question are, each of them, held by some of the leaders of philosophy. In presenting them, therefore, I have tried to let the full dialectical force of the argument appear. I have indicated my own view, that the direction in which the solution lies is in the new conception of life and the theory of knowledge given to us in the philosophy of Bergson. If I am right, the solution is not, like pragmatism, a doctrine of the nature of truth, but a theory of knowledge in which {vi} the dilemma in regard to truth does not arise. But, as always in philosophy, the solution of one problem is the emergence of another. There is no finality.
My grateful acknowledgment is due to my friend Professor S. Alexander, who kindly read my manuscript and assisted me with most valuable suggestions, and also to my friend Dr. T. Percy Nunn for a similar service.
H. WILDON CARR.
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CONTENTS
CHAP.
I. PHYSICS AND METAPHYSICS II. APPEARANCE AND REALITY III. THE LOGICAL THEORIES IV. THE ABSOLUTE V. PRAGMATISM VI. UTILITY VII. ILLUSION VIII. THE PROBLEM OF ERROR IX. CONCLUSION BIBLIOGRAPHY INDEX
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THE PROBLEM OF TRUTH
CHAPTER I
PHYSICS AND METAPHYSICS
The progress of physical science leads to the continual discovery of complexity in what is first apprehended as simple. The atom of hydrogen, so long accepted as the ideal limit of simplicity, is now suspected to be not the lowest unit in the scale of elements, and it is no longer conceived, as it used to be, as structureless, but as an individual system, comparable to a solar system, of electrical components preserving an equilibrium probably only temporary. The same tendency to discover complexity in what is first apprehended as simple is evident in the study of philosophy. The more our simple and ordinary notions are submitted to analysis, the more are profound problems brought to consciousness. It is impossible to think that we do not know what such an ordinary, simple notion as that of truth is; yet the attempt to give a definition of its meaning brings quite unexpected difficulties to light, and the widest divergence at the present time between rival principles of philosophical interpretation is in regard to a theory of the nature of truth. It is not a problem that is pressed on us by any felt need, nor is anyone who does not feel its interest called upon to occupy himself with it. We speak our language before we know its {10} grammar, and we reason just as well whether we have learnt the science of logic or not.
This science of Logic, or, as it is sometimes called, of Formal Logic, was, until modern times, regarded as a quite simple account of the principles that govern the exercise of our reasoning faculty, and of the rules founded on those principles by following which truth was attained and false opinion or error avoided. It was called formal because it was supposed to have no relation to the matter of the subject reasoned about, but only to the form which the reasoning must take. A complete account of this formal science, as it was recognised and accepted for many ages, might easily have been set forth within the limits of a small volume such as this. But the development of modern philosophy has wrought an extraordinary change. Anyone now who will set himself the task of mastering all the problems that have been raised round the question of the nature of logical process, will find himself confronted with a vast library of special treatises, and involved in discussions that embrace the whole of philosophy. The special problem of truth that it is the object of this little volume to explain is a quite modern question. It has been raised within the present generation of philosophical writers, and is to-day, perhaps, the chief controversy in which philosophers are engaged. But although it is only in the last few years that controversy has been aroused on this question, the problem is not new--it is indeed as old as philosophy itself. In the fifth century before Christ, and in the generation that immediately preceded Socrates, a famous philosopher, Protagoras (481-411 B.C.) published a book with the title _The Truth_. He had the misfortune, common at that time, to offend the religious Athenians, {11} for he spoke slightingly of the gods, proposing to "banish their existence or non-existence from writing and speech." He was convicted of atheism, and his books were publicly burnt, and he himself, then seventy years of age, was either banished or at least was obliged to flee from Athens, and on his way to Sicily he lost his life in a shipwreck. Our knowledge of this book of Protagoras is due to the preservation of its argument by Plato in the dialogue "Theætetus." Protagoras, we are there told, taught that "man is the measure of all things--of the existence of things that are, and of the non-existence of things that are not." "You have read him?" asks Socrates, addressing Theætetus. "Oh yes, again and again," is Theætetus' reply. Plato was entirely opposed to the doctrine that Protagoras taught. It seemed to him to bring gods and men and tadpoles to one level as far as truth was concerned; for he drew the deduction that if man is the measure of all things, then to each man his own opinion is right. Plato opposed to it the theory that truth is the vision of a pure objective reality.
This same problem that exercised the ancient world is now again a chief centre of philosophical interest, and the aim of this little book is not to decide that question, but to serve as a guide and introduction to those who desire to know what the question is that divides philosophers to-day into the hostile camps of pragmatism and intellectualism.
The subject is not likely to interest anyone who does not care for the study of the exact definitions and abstract principles that lie at the basis of science and philosophy. There are many who are engaged in the study of the physical and natural sciences, and also many who devote themselves to the social and political {12} sciences, who hold in profound contempt the fine distinctions and intellectual subtleties that seem to them the whole content of logic and metaphysic. The attitude of the scientific mind is not difficult to understand. It has recently been rather graphically expressed by a distinguished and popular exponent of the principles of natural science. "One may regard the utmost possibilities of the results of human knowledge as the contents of a bracket, and place outside the bracket the factor _x_ to represent those unknown and unknowable possibilities which the imagination of man is never wearied of suggesting. This factor _x_ is the plaything of the metaphysician."[1] This mathematical symbol of the bracket, multiplied by _x_ to represent the unknown and unknowable possibilities beyond it, will serve me to indicate with some exactness the problem with which I am going to deal. The symbol is an expression of the agnostic position. The popular caricature of the metaphysician and his "plaything" we may disregard as a pure fiction. The unknowable _x_ of the agnostic is not the "meta" or "beyond" of physics which the metaphysician vainly seeks to know. The only "beyond" of physics is consciousness or experience itself, and this is the subject-matter of metaphysics. Our present problem is that of the bracket, not that of the factor outside, if there is any such factor, nor yet the particular nature of the contents within. There are, as we shall see, three views that are possible of the nature of the bracket. In one view, it is merely the conception of the extent which knowledge has attained or can attain; it has no intimate relation to the knowledge, but marks externally its limit. This is the view of the realist. In another view, the whole of knowledge is intimately related {13} to its particular parts; the things we know are not a mere collection or aggregate of independent facts that we have discovered; the bracket which contains our knowledge gives form to it, and relates organically the dependent parts to the whole in one comprehensive individual system. This is the view of the idealist. There is yet another view: human knowledge is relative to human activity and its needs; the bracket is the ever-changing limit of that activity--within it is all that is relevant to human purpose and personality without it is all that is irrelevant. This is the view of the pragmatist.
It is not only the scientific mind, but also the ethical and religious mind, that is likely to be at least impatient, if not contemptuous, of this inquiry. The question What is truth? will probably bring to everyone's mind the words uttered by a Roman Procurator at the supreme moment of a great world-tragedy. Pilate's question is usually interpreted as the cynical jest of a judge indifferent to the significance of the great cause he was trying--the expression of the belief that there is no revelation of spiritual truth of the highest importance for our human nature, or at least that there is no infallible test by which it can be known. It is not this problem of truth that we are now to discuss.
There are, on the other hand, many minds that can never rest satisfied while they have accepted only, and not examined, the assumptions of science and the values of social and political and religious ideals. Their quest of first principles may appear to more practical natures a harmless amusement or a useless waste of intellectual energy; but they are responding to a deep need of our human nature, a need that, it may be, is in its very nature insatiable--the need of intellectual satisfaction. It is {14} the nature of this intellectual satisfaction itself that is our problem of truth.
There are therefore two attitudes towards the problem of truth and reality--that of the mind which brings a practical test to every question, and that of the mind restless to gain by insight or by speculation a clue to the mystery that enshrouds the meaning of existence. The first attitude seems peculiarly to characterise the man of science, who delights to think that the problem of reality is simple and open to the meanest understanding. Between the plain man's view and that of the man of high attainment in scientific research there is for him only a difference of degree, and science seems almost to require an apology if it does not directly enlarge our command over nature. It would explain life and consciousness as the result of chemical combination of material elements. Philosophy, on the other hand, is the instinctive feeling that the secret of the universe is not open and revealed to the plain man guided by common-sense experience alone, even if to this experience be added the highest attainments of scientific research. Either there is far more in matter than is contained in the three-dimensional space it occupies, or else the universe must owe its development to something beyond matter. The universe must seem a poor thing indeed to a man who can think that physical science does or can lay bare its meaning. It is the intense desire to catch some glimpse of its meaning that leads the philosopher to strive to transcend the actual world by following the speculative bent of the reasoning power that his intellectual nature makes possible.
[1] Sir Kay Lankester.
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CHAPTER II
APPEARANCE AND REALITY
Our conscious life is one unceasing change. From the first awakening of consciousness to the actual present, no one moment has been the mere repetition of another, and the moments which as we look back seem to have made up our life are not separable elements of it but our own divisions of a change that has been continuous. And as it has been, so we know it will be until consciousness ceases with death. Consciousness and life are in this respect one and the same, although when we speak of our consciousness we think chiefly of a passive receptivity, and when we speak of our life we think of an activity. Consciousness as the unity of knowing and acting is a becoming. The past is not left behind, it is with us in the form of memory; the future is not a predetermined order which only a natural disability prevents us from knowing, it is yet uncreated; conscious life is the enduring present which grows with the past and makes the future.
This reality of consciousness is our continually changing experience. But there is also another reality with which it seems to be in necessary relation and also in complete contrast--this is the reality of the material or physical universe. The world of physical reality seems to be composed of a matter that cannot change in a space that is absolutely unchangeable. This physical world seems made up of solid things, formed out of matter. Change in physical science is only a rearrangement of matter or an alteration of position in space.
This physical reality is not, as psychical reality is, {16} known to us directly; it is an interpretation of our sense experience. Immediate experience has objects, generally called sense data. These objects are what we actually see in sensations of sight, what we actually hear in sensations of sound, and so on; and they lead us to suppose or infer physical objects--that is, objects that do not depend upon our experience for their existence, but whose existence is the cause of our having the experience. The process by which we infer the nature of the external world from our felt experience is logical. It includes perceiving, conceiving, thinking or reasoning. The object of the logical process, the aim or ideal to which it seeks to attain, is truth. Knowledge of reality is truth.
There are therefore two realities, the reality of our felt experience from which all thinking sets out, and the reality which in thinking we seek to know. The one reality is immediate; it is conscious experience itself. The other reality is that which we infer from the fact of experience, that by which we seek to explain our existence. The one we feel, the other we think. If the difference between immediate knowledge and mediate knowledge or inference lay in the feeling of certainty alone or in the nature of belief, the distinction would not be the difficult one that it is. The theories of idealism and realism show how widely philosophers are divided on the subject. We are quite as certain of some of the things that we can only infer as we are of the things of which we are immediately aware. Wd cannot doubt, for instance, that there are other persons besides ourselves, yet we can have no distinct knowledge of any consciousness but one--our own. Our knowledge that there are other minds is an inference from our observation of the behaviour of some of the things we {17} directly experience, and from the experience of our own consciousness. And even those things which seem in direct relation to us--the things we see, or hear, or touch--are immediately present in only a very small, perhaps an infinitesimal, part of what we know and think of as their full reality; all but this small part is inferred. From a momentary sensation of sight, or sound, or touch we infer reality that far exceeds anything actually given to us by the sensation.
Thinking is questioning experience. When our attention is suddenly attracted by something--a flash of light, or a sound, or a twinge of pain--consciously or unconsciously we say to ourself, What is that? The _that_--a simple felt experience--contains a meaning, brings a message, and we ask _what_? We distinguish the existence as an appearance, and we seek to know the reality. The quest of the reality which is made known to us by the appearance is the logical process of thought. The end or purpose of this logical process is to replace the immediate reality of the felt experience with a mediated-reality--that is, a reality made known to us. Directly, therefore, that we begin to think, the immediately present existence becomes an appearance, and throughout the development of our thought it is taken to be something that requires explanation. We seek to discover the reality which will explain it.
It is in this distinction of appearance and reality that the problem of truth arises. It does not depend upon any particular theory of knowledge. The same fact is recognised by idealists and by realists. Idealism may deny that the knowledge of independent reality is possible; realism may insist that it is implied in the very fact of consciousness itself--whichever is right, the reality which thinking brings before the mind is quite {18} unlike and of a different order to that which we immediately experience in feeling. And even if we know nothing of philosophy, if we are ignorant of all theories of knowledge and think of the nature of knowledge simply from the standpoint of the natural man, the fact is essentially the same--the true reality of things is something concealed from outward view, something to be found out by science or by practical wisdom. Our knowledge of this reality may be true, in this case only is it knowledge; or it may be false, in which case it is not knowledge but opinion or error.
The reality then, the knowledge of which is truth, is not the immediate reality of feeling but the inferred reality of thought. To have any intelligible meaning, the affirmation that knowledge is true supposes that there already exists a distinction between knowledge and the reality known, between the being and the knowing of that which is known. In immediate knowledge, in actual conscious felt experience there is no such distinction, and therefore to affirm truth or error of such knowledge is unmeaning. I cannot have a toothache without knowing that I have it. In the actual felt toothache knowing and being are not only inseparable--they are indistinguishable. If, however, I think of my toothache as part of an independent order of reality, my knowledge of it may be true or false. I am then thinking of it as the effect of an exposed nerve, or of an abscess or of an inflammation--as something, that is to say, that is conditioned independently of my consciousness and that will cease to exist when the conditions are altered. In the same way, when I behold a landscape, the blue expanse of sky and variegated colour of the land which I actually experience are not either true or false, they are immediate experience in {19} which knowing is being and being is knowing. Truth and error only apply to the interpretation of that experience, to the independent reality that I infer from it. We can, then, distinguish two kinds of knowledge which we may call immediate and mediate, or, better still, acquaintance and description. Accordingly, when we say that something is, or when we say of anything that it if real, we may mean either of two things. We may mean that it is part of the changing existence that we actually feel and that we call consciousness or life, or we may mean that it is part of an independent order of things whose existence we think about in order to explain, not what our feeling is (there can be no explanation of this), but how it comes to exist. We know by description a vast number of things with which we never can be actually acquainted. Such, indeed, is the case with all the knowledge by which we rule our lives and conceive the reality which environs us. Yet we are absolutely dependent on the reality we know by acquaintance for all our knowledge of these things. Not only is immediate sense experience and the knowledge it gives us by acquaintance the only evidence we have of the greater and wider reality, but we are dependent on it for the terms wherewith to describe it, for the form in which to present it, for the matter with which to compose it. And this is the real ground of the study of philosophy, the justification of its standpoint. It is this fact--this ultimate undeniable fact--that all reality of whatever kind and in whatever way known, whether by thought or by feeling, whether it is perceived or conceived, remembered or imagined, is in the end composed of sense experience: it is this fact from which all the problems of philosophy arise. It is this fact that our utilitarian men of science find {20} themselves forced to recognise, however scornful they may be of metaphysical methods and results.
The special problem of the nature of truth is concerned, then, with the reality that we have distinguished as known by description, and conceived by us as independent in its existence of the consciousness by which we know it. What is the nature of the seal by which we stamp this knowledge true?
CHAPTER III
THE LOGICAL THEORIES
Whoever cares to become acquainted with the difficulty of the problem of truth must not be impatient of dialectical subtleties. There is a well-known story in Boswell's _Life of Dr. Johnson_ which relates how the Doctor refuted Berkeley's philosophy which affirmed the non-existence of matter. "I observed," says Boswell, "that though we are satisfied his doctrine is not true, it is impossible to refute it. I shall never forget the alacrity with which Johnson answered, striking his foot with mighty force against a large stone, till he rebounded from it--'I refute it _thus_.'" Dr. Johnson is the representative of robust common sense. It has very often turned out in metaphysical disputes that the common-sense answer is the one that has been justified in the end. Those who are impatient of metaphysics are, therefore, not without reasonable ground; and indeed the strong belief that the common-sense view will be justified in the end, however powerful the sceptical doubt that seems to contradict it, however startling the paradox that seems to be involved in it, is a possession of the human mind without which the ordinary {21} practical conduct of life would be impossible. When, then, we ask ourselves, What is truth? the answer seems to be simple and obvious. Truth, we reply, is a property of certain of our ideas; it means their agreement, as falsity means their disagreement, with reality. If I say of anything that it is so, then, if it is so, what I say is true; if it is not so, then what I say is false. This simple definition of truth is one that is universally accepted. No one really can deny it, for if he did he would have nothing to appeal to to justify his own theory or condemn another. The problem of truth is only raised when we ask, What does the agreement of an idea with reality mean? If the reader will ask himself that question, and carefully ponder it, he will see that there is some difficulty in the answer to the simple question, What is truth? The answer that will probably first of all suggest itself is that the idea is a copy of the reality. And at once many experiences will seem to confirm this view. Thus when we look at a landscape we know that the lines of light which radiate from every point of it pass through the lens of each of our eyes to be focussed on the retina, forming there a small picture which is the exact counterpart of the reality. If we look into another person's eye we may see there a picture of the whole field of his vision reflected from his lens. It is true that what we see is not what he sees, for that is on his retina, but the analogy of this with a photographic camera, where we see the picture on the ground glass, seems obvious and natural; and so we think of knowledge, so far as it depends on the sense of vision, as consisting in more or less vivid, more or less faded, copies of real things stored up by the memory. But a very little reflection will convince us that the truth of our ideas cannot consist in the fact {22} that they are copies of realities, for clearly they are not copies in any possible meaning of the term. Take, for example, this very illustration of seeing a landscape: what we see is not a picture or copy of the landscape, but the real landscape itself. We feel quite sure of this, and with regard to the other sensations, those that come to us by hearing, taste, smell, touch, it would seem highly absurd to suppose that the ideas these sensations produce in us are copies of real things. The pain of burning is not a copy of real fire, and the truth of the judgment, Fire burns, does not consist in the fact that the ideas denoted by the words "fire," "burns," faithfully copy certain real things which are not ideas. And the whole notion is seen to be absurd if we consider that, were it a fact that real things produce copies of themselves in our mind, we could never know it was so--all that we should have any knowledge of would be the copies, and whether these were like or unlike the reality, or indeed whether there was any reality for them to be like would, in the nature of the case, be unknowable, and we could never ask the question.
If, then, our ideas are not copies of things, and if there are things as well as ideas about things, it is quite clear that the ideas must correspond to the things in some way that does not make them copies of the things. The most familiar instance of correspondence is the symbolism we use in mathematics. Are our ideas of this nature? And is their truth their correspondence? Is a perfectly true idea one in which there exists a point to point correspondence to the reality it represents? At once there will occur to the mind a great number of instances where this seems to be the case. A map of England is not a copy of England such as, for example, a photograph might be if we were to imagine it taken {23} from the moon. The correctness or the truth of a map consists in the correspondence between the reality and the diagram, which is an arbitrary sign of it. Throughout the whole of our ordinary life we find that we make use of symbols and signs that are not themselves either parts of or copies of the things for which they stand. Language itself is of this nature, and there may be symbols of symbols of symbols of real things. Written language is the arbitrary visual sign of spoken language, and spoken language is the arbitrary sign, it may be, of an experienced thing or of an abstract idea. Is, then, this property of our ideas which we call truth the correspondence of ideas with their objects, and is falsity the absence of this correspondence? It cannot be so. To imagine that ideas can correspond with realities is to forget that ideas simply are the knowledge of realities; it is to slip into the notion that we know two kinds of different things, first realities and secondly ideas, and that we can compare together these two sorts of things. But it is at once evident that if we could know realities without ideas, we should never need to have recourse to ideas. It is simply ridiculous to suppose that the relation between consciousness and reality which we call knowing is the discovery of a correspondence between mental ideas and real things. The two things that are related together in knowledge are not the idea and its object, but the mind and its object. The idea of the object is the knowledge of the object. There may be correspondence between ideas, but not between ideas and independent things, for that supposes that the mind knows the ideas and also knows the things and observes the correspondence between them. And even if we suppose that ideas are an independent kind of entity distinguishable and separable from another kind {24} of entity that forms the real world, how could we know that the two corresponded, for the one would only be inferred from the other?
There is, however, a form of the correspondence theory of truth that is presented in a way which avoids this difficulty. Truth, it is said, is concerned not with the nature of things themselves but with our judgments about them. Judgment is not concerned with the terms that enter into relation--these are immediately experienced and ultimate--but with the relations in which they stand to one another. Thus, when we say John is the father of James, the truth of our judgment does not consist in the adequacy of our ideas of John and James, nor in the correspondence of our ideas with the realities, but is concerned only with the relation that is affirmed to exist between them. This relation is declared to be independent of or at least external to the terms, and, so far as it is expressed in a judgment, truth consists in its actual correspondence with fact. So if I say John is the father of James, then, if John is the father of James, the judgment is true, the affirmation is a truth; if he is not, it is false, the affirmation is a falsehood. This view has the merit of simplicity, and is sufficiently obvious almost to disarm criticism. There is, indeed, little difficulty in accepting it if we are able to take the view of the nature of the real universe which it assumes. The theory is best described as pluralistic realism. It is the view that the universe consists of or is composed of an aggregate of an infinite number of entities. Some of these have a place in the space and time series, and these exist. Some, on the other hand, are possibilities which have not and may never have any actual existence. Entities that have their place in the perceptual order of experience exist, {25} or have existed, or will exist; but entities that are concepts, such as goodness, beauty, truth, or that are abstract symbols like numbers, geometrical figures, pure forms, do not exist, but are none the less just as real as the entities that do exist. These entities are the subject-matter of our judgments, and knowing is discovering the relations in which they stand to one another. The whole significance of this view lies in the doctrine that relations are external to the entities that are related--they do not enter into and form part of the nature of the entities. The difficulty of this view is just this externality of the relation. It seems difficult to conceive what nature is left in any entity deprived of all its relations. The relation of father and son in the judgment, John is the father of James, is so far part of the nature of the persons John and James, that if the judgment is false then to that extent John and James are not the actual persons John and James that they are thought to be. And this is the case even in so purely external a relation as is expressed, say, in the judgment, Edinburgh is East of Glasgow. It is difficult to discuss any relation which can be said to be entirely indifferent to the nature of its terms, and it is doubtful if anything whatever would be left of a term abstracted from all its relations.
These difficulties have led to the formulation of an altogether different theory, namely, the theory that truth does not consist in correspondence between ideas and their real counterparts, but in the consistence and internal harmony of the ideas themselves. It is named the coherence theory. It will be recognised at once that there is very much in common experience to support it. It is by the test of consistency and coherence that we invariably judge the truth of evidence. {26} Also it seems a very essential part of our intellectual nature to reject as untrue and false any statement or any idea that is self-contradictory or irreconcilable with the world of living experience. But then, on the other hand, we by no means allow that that must be true which does not exhibit logical contradiction and inconsistency. It is a common enough experience that ideas prove false though they have exhibited no inherent failure to harmonise with surrounding circumstances nor any self-contradiction. The theory, therefore, requires more than a cursory examination.
Thinking is the activity of our mind which discovers the order, arrangement, and system in the reality that the senses reveal. Without thought, our felt experience would be a chaos and not a world. The philosopher Kant expressed this by saying that the understanding gives unity to the manifold of sense. The understanding, he said, makes nature. It does this by giving form to the matter which comes to it by the senses. The mind is not a _tabula rasa_ upon which the external world makes and leaves impressions, it is a relating activity which arranges the matter it receives in forms. First of all there are space and time, which are forms in which we receive all perceptual experience, and then there are categories that are conceptual frames or moulds by which we think of everything we experience as having definite relations and belonging to a real order of existence. Substance, causality, quality, and quantity are categories; they are universal forms in which the mind arranges sense experience, and which constitute the laws of nature, the order of the world. Space and time, and the categories of the understanding Kant declared to be transcendental--that is to say, they are the elements necessary to experience which are not {27} themselves derived from experience, as, for example, that every event has a cause. There are, he declared, synthetic _a priori_ judgments--that is, judgments about experience which are not themselves derived from experience, but, on the contrary, the conditions that make experience possible. It is from this doctrine of Kant that the whole of modern idealism takes its rise. Kant, indeed, held that there are things-in-themselves, and to this extent he was not himself an idealist, but he also held that things-in-themselves are unknowable, and this is essentially the idealist position. Clearly, if we hold the view that things-in-themselves are unknowable, truth cannot be a correspondence between our ideas and these things-in-themselves. Truth must be some quality of the ideas themselves, and this can only be their logical consistency. Consistency, because the ideas must be in agreement with one another; and logical, because this consistency belongs to the thinking, and logic is the science of thinking. Truth, in effect, is the ideal of logical consistency. We experience in thinking an activity striving to attain the knowledge of reality, and the belief, the feeling of satisfaction that we experience when our thinking seems to attain the knowledge of reality, is the harmony, the absence of contradiction, the coherence, of our ideas themselves. This is the coherence theory. Let us see what it implies as to the ultimate nature of truth and reality.
In both the theories we have now examined, truth is a logical character of ideas. In the correspondence theory there is indeed supposed a non-logical reality, but it is only in the ideas that there is the conformity or correspondence which constitutes their truth. In the coherence theory, reality is itself ideal, and the {28} ultimate ground of everything is logical. This is the theory of truth that accords with the idealist view, and this view finds its most perfect expression in the theory of the Absolute. The Absolute is the idea of an object that realises perfect logical consistency. This object logic itself creates; if it be a necessary existence, then knowledge of it cannot be other than truth. This view, on account of the supreme position that it assigns to the intellect, and of the fundamental character with which it invests the logical categories, has been named by those who oppose it Intellectualism. It is important that it should be clearly understood, and the next chapter will be devoted to its exposition.
CHAPTER IV
THE ABSOLUTE
A comparison of the two theories of truth examined in the last chapter will show that, whereas both rest on a logical quality in ideas, the first depends on an external view taken by the mind of an independent non-mental reality, whereas the second depends on the discovery of an inner meaning in experience itself. It is this inner meaning of experience that we seek to know when asking any question concerning reality. It is the development of this view, and what it implies as to the ultimate nature of reality and truth, that we are now to examine.
When we ask questions about reality, we assume in the very inquiry that reality is of a nature that experience reveals. Reality in its ultimate nature may be logical--that is to say, of the nature of reason, or it may {29} be non-logical--that is to say, of the nature of feeling or will; but in either case it must be a nature of which conscious experience can give us knowledge. If indeed we hold the view which philosophers have often endeavoured to formulate, that reality is unknowable, then there is no more to be said; for, whatever the picture or the blank for a picture by which the mind tries to present this unknowable reality, there can be no question in relation to it of the nature and meaning of truth. An unknowable reality, as we shall show later on, is to all intents and purposes non-existent reality. On the other hand, if thinking leads to the knowledge of reality that we call truth, it is because being and knowing are ultimately one, and this unity can only be in conscious experience. This is the axiom on which the idealist argument is based.
The theory of the Absolute is a logical argument of great dialectical force. It is not an exaggeration to say that it is the greatest dialectical triumph of modern philosophy. It is the most successful expression of idealism. That this is not an extravagant estimate is shown, I think, by the fact that, widespread and determined as is the opposition it has had to encounter, criticism has been directed not so much against its logic as against the basis of intellectualism on which it rests. The very boldness of its claim and brilliance of its triumph lead to the suspicion that the intellect cannot be the sole determining factor of the ultimate nature of reality.
It will be easier to understand the theory of the Absolute if we first of all notice, for the sake of afterwards comparing it, another argument very famous in the history of philosophy--the argument to prove the existence of God named after St. Anselm of Canterbury. {30} It runs thus: We have in God the idea of a perfect being; the idea of a perfect being includes the existence of that being, for not to exist is to fall short of perfection; therefore God exists. The theological form of this argument need raise no prejudice against it. It is of very great intrinsic importance, and if it is wrong it is not easy to point out wherein the fallacy lies. It may, of course, be denied that we have or can have the idea of a perfect being--that is to say, that we can present that idea to the mind with a positive content or meaning as distinct from a merely negative or limiting idea. But this is practically to admit the driving force of the argument, namely, that there may be an idea of whose content or meaning existence forms part. With regard to everything else the idea of existing is not existence. There is absolutely no difference between the idea of a hundred dollars and the idea of a hundred dollars existing, but there is the whole difference between thought and reality in the idea of the hundred dollars existing and the existence of the hundred dollars. Their actual existence in no way depends on the perfection or imperfection of my idea, nor in the inclusion of their existence in my idea. This is sufficiently obvious in every case in which we are dealing with perceptual reality, and in which we can, in the words of the philosopher Hume, produce the impression which gives rise to the idea. But there are some objects which by their very nature will not submit to this test. No man hath seen God at any time, not because God is an object existing under conditions and circumstances of place and time impossible for us to realise by reason of the limitations of our finite existence, but because God is an object in a different sense from that which has a place in the perceptual order, and therefore it is affirmed of God that the {31} idea involves existence. God is not an object of perception, either actual or possible; nor in the strict sense is God a concept--that is to say, a universal of which there may be particulars. He is in a special sense the object of reason. If we believe that there is a God, it is because our reason tells us that there must be. God, in philosophy, is the idea of necessary existence, and the argument runs: God must be, therefore is. If, then, we exclude from the idea of God every mythological and theological element--if we mean not Zeus nor Jehovah nor Brahma, but the first principle of existence--then we may find in the St. Anselm argument the very ground of theism.
I have explained this argument, which is of the class called ontological because it is concerned with the fundamental question of being, in order to give an instance of the kind of argument that has given us the theory of the Absolute. I will now try to set that theory before the reader, asking only that he will put himself into the position of a plain man with no special acquaintance with philosophy, but reflective and anxious to interpret the meaning of his ordinary experience.
We have already seen that thinking is the questioning of experience, and that the moment it begins it gives rise to a distinction between appearance and reality. It is the asking _what?_ of every _that_ of felt experience to which the mind attends. The world in which we find ourselves is extended all around us in space and full of things which affect us in various ways: some give us pleasure, others give us pain, and we ourselves are things that affect other things as well as being ourselves affected by them. When we think about the things in the world in order to discover _what_ they really are, we very soon find that we are liable to illusion and error. {32} Things turn out on examination to be very different to what we first imagined them to be. Our ideas, by which we try to understand the reality of things are just so many attempts to correct and set right our illusions and errors. And so the question arises, how far are our ideas about things truths about reality? It is very soon evident that there are some qualities of things that give rise to illusion and error much more readily than others. The spatial qualities of things, solidity, shape, size, seem to be real in a way that does not admit of doubt. We seem able to apply to these qualities a test that is definite and absolute. On the other hand, there seem to be effects of these things in us such as their colour, taste, odour, sound, coldness, or heat, qualities that are incessantly changing and a fruitful source of illusion and error. We therefore distinguish the spatial qualities as primary, and consider that they are the real things and different from their effects, which we call their secondary qualities. And this is, perhaps, our most ordinary test of reality. If, for example, we should think that something we see is an unreal phantom, or a ghost, or some kind of hallucination, and on going up to it find that it does actually occupy space, we correct our opinion and say the thing is real. But the spatial or primary qualities of a thing, although they may seem more permanent and more essential to the reality of the thing than the secondary qualities, are nevertheless only qualities. They are not the thing itself, but ways in which it affects us. It seems to us that these qualities must inhere in or belong to the thing, and so we try to form the idea of the real thing as a substance or substratum which has the qualities. This was a generally accepted notion until Berkeley (1685-1763) showed how contradictory it is. So {33} simple and convincing was his criticism of the notion, that never since has material substance been put forward as an explanation of the reality of the things we perceive. All that he did was to show how impossible and contradictory it is to think that the reality of that which we perceive is something in its nature imperceptible, for such must material substance be apart from its sense qualities. How can that which we perceive be something imperceptible? And if we reflect on it, we shall surely agree that it is so--by the thing we mean its qualities, and apart from the qualities there is no thing. We must try, then, in some other way to reach the reality.
What, we shall now ask, can it be that binds together these sense qualities so that we speak of them as a thing? There are two elements that seem to enter into everything whatever that comes into our experience, and which it seems to us would remain if everything in the universe were annihilated. These are space and time. Are they reality? Here we are met with a new kind of difficulty. It was possible to dismiss material substance as a false idea, an idea of something whose existence is impossible; but space and time are certainly not false ideas. The difficulty about them is that we cannot make our thought of them consistent--they are ideas that contain a self-contradiction, or at least that lead to a self-contradiction when we affirm them of reality. With the ideas of space and time are closely linked the ideas of change, of movement, of causation, of quality and quantity, and all of these exhibit this same puzzling characteristic, that they seem to make us affirm what we deny and deny what we affirm. I might fill this little book with illustrations of the paradoxes that are involved in these ordinary working ideas. Everyone is familiar with the difficulty involved in the {34} idea of time. We must think there was a beginning, and we cannot think that there was any moment to which there was no before. So also with space, it is an infinite extension which we can only think of as a beyond to every limit. This receding limit of the infinitely extensible space involves the character of infinite divisibility, for if there are an infinite number of points from which straight lines can be drawn without intersecting one another to any fixed point there is therefore no smallest space that cannot be further divided. The contradictions that follow from these demonstrable contents of the idea of space are endless. The relation of time to space is another source of contradictory ideas. I shall perhaps, however, best make the meaning of this self-contradictory character of our ordinary ideas clear by following out a definite illustration. What is known as the antinomy of motion is probably familiar to everyone from the well-known paradox of the Greek philosopher Zeno. The flying arrow, he said, does not move, because if it did it would be in two places at one and the same time, and that is impossible. I will now put this same paradox of movement in a form which, so far as I know, it has not been presented before. My illustration will involve the idea of causation as well as that of movement. If we suppose a space to be fully occupied, we shall agree that nothing within that space can move without thereby displacing whatever occupies the position into which it moves. That is to say, the movement of any occupant of one position must cause the displacement of the occupant of the new position into which he moves. But on the other hand it is equally clear that the displacement of the occupant of the new position is a prior condition of the possibility of the movement of {35} the mover, for nothing can move unless there is an unoccupied place for it to move into, and there is no unoccupied place unless it has been vacated by its occupant before the movement begins. We have therefore the clear contradiction that a thing can only move when something else which it causes to move has already moved. Now if we reflect on it we shall see that this is exactly the position we occupy in our three-dimensional space. The space which surrounds us is occupied, and therefore we cannot move until a way is made clear for us, and nothing makes way for us unless we move. We cannot move through stone walls because we cannot displace solid matter, but we can move through air and water because we are able to displace these. The problem is the same. My movement displaces the air, but there is no movement until the air is displaced. Can we escape the contradiction by supposing the displacement is the cause and the movement the effect. Are we, like people in a theatre queue, only able to move from behind forward as the place is vacated for us in front? In that case we should be driven to the incredible supposition that the original cause or condition of our movement is the previous movement of something at the outskirts of our occupied space, that this somewhat moving into the void made possible the movement of the occupant of the space next adjoining, and so on until after a lapse of time which may be ages, which may indeed be infinite, the possibility of movement is opened to us. In fact we must believe that the effect of our movement--namely, the displacement of the previous occupants from the positions we occupy in moving--happened before it was caused. Now it is impossible for us to believe either of the only two alternatives--either that we do not really move but only {36} appear to do so, or that the displacement our movement causes really precedes the movement. When we meet with a direct self-contradiction in our thoughts about anything, we can only suppose that that about which we are thinking is in its nature nonsensical, or else that our ideas about it are wrong. |
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