Essays on Life, Art and Science
Chapter 11
After all, a professor, whether of philology, psychology, biology, or any other ology, is hardly the kind of person to whom we should appeal on such an elementary question as that of animal intelligence and language. We might as well ask a botanist to tell us whether grass grows, or a meteorologist to tell us if it has left off raining. If it is necessary to appeal to any one, I should prefer the opinion of an intelligent gamekeeper to that of any professor, however learned. The keepers, again, at the Zoological Gardens, have exceptional opportunities for studying the minds of animals--modified, indeed, by captivity, but still minds of animals. Grooms, again, and dog-fanciers, are to the full as able to form an intelligent opinion on the reason and language of animals as any University Professor, and so are cats'-meat men. I have repeatedly asked gamekeepers and keepers at the Zoological Gardens whether animals could reason and converse with one another, and have always found myself regarded somewhat contemptuously for having even asked the question. I once said to a friend, in the hearing of a keeper at the Zoological Gardens, that the penguin was very stupid. The man was furious, and jumped upon me at once. "He's not stupid at all," said he; "he's very intelligent."
Who has not seen a cat, when it wishes to go out, raise its fore paws on to the handle of the door, or as near as it can get, and look round, evidently asking some one to turn it for her? Is it reasonable to deny that a reasoning process is going on in the cat's mind, whereby she connects her wish with the steps necessary for its fulfilment, and also with certain invariable symbols which she knows her master or mistress will interpret? Once, in company with a friend, I watched a cat playing with a house-fly in the window of a ground-floor room. We were in the street, while the cat was inside. When we came up to the window she gave us one searching look, and, having satisfied herself that we had nothing for her, went on with her game. She knew all about the glass in the window, and was sure we could do nothing to molest her, so she treated us with absolute contempt, never even looking at us again.
The game was this. She was to catch the fly and roll it round and round under her paw along the window-sill, but so gently as not to injure it nor prevent it from being able to fly again when she had done rolling it. It was very early spring, and flies were scarce, in fact there was not another in the whole window. She knew that if she crippled this one, it would not be able to amuse her further, and that she would not readily get another instead, and she liked the feel of it under her paw. It was soft and living, and the quivering of its wings tickled the ball of her foot in a manner that she found particularly grateful; so she rolled it gently along the whole length of the window-sill. It then became the fly's turn. He was to get up and fly about in the window, so as to recover himself a little; then she was to catch him again, and roll him softly all along the window-sill, as she had done before.
It was plain that the cat knew the rules of her game perfectly well, and enjoyed it keenly. It was equally plain that the fly could not make head or tail of what it was all about. If it had been able to do so it would have gone to play in the upper part of the window, where the cat could not reach it. Perhaps it was always hoping to get through the glass, and escape that way; anyhow, it kept pretty much to the same pane, no matter how often it was rolled. At last, however, the fly, for some reason or another, did not reappear on the pane, and the cat began looking everywhere to find it. Her annoyance when she failed to do so was extreme. It was not only that she had lost her fly, but that she could not conceive how she should have ever come to do so. Presently she noted a small knot in the woodwork of the sill, and it flashed upon her that she had accidentally killed the fly, and that this was its dead body. She tried to move it gently with her paw, but it was no use, and for the time she satisfied herself that the knot and the fly had nothing to do with one another. Every now and then, however, she returned to it as though it were the only thing she could think of, and she would try it again. She seemed to say she was certain there had been no knot there before--she must have seen it if there had been; and yet, the fly could hardly have got jammed so firmly into the wood. She was puzzled and irritated beyond measure, and kept looking in the same place again and again, just as we do when we have mislaid something. She was rapidly losing temper and dignity when suddenly we saw the fly reappear from under the cat's stomach and make for the window-pane, at the very moment when the cat herself was exclaiming for the fiftieth time that she wondered where that stupid fly ever could have got to. No man who has been hunting twenty minutes for his spectacles could be more delighted when he suddenly finds them on his own forehead. "So that's where you were," we seemed to hear her say, as she proceeded to catch it, and again began rolling it very softly without hurting it, under her paw. My friend and I both noticed that the cat, in spite of her perplexity, never so much as hinted that we were the culprits. The question whether anything outside the window could do her good or harm had long since been settled by her in the negative, and she was not going to reopen it; she simply cut us dead, and though her annoyance was so great that she was manifestly ready to lay the blame on anybody or anything with or without reason, and though she must have perfectly well known that we were watching the whole affair with amusement, she never either asked us if we had happened to see such a thing as a fly go down our way lately, or accused us of having taken it from her--both of which ideas she would, I am confident, have been very well able to convey to us if she had been so minded.
Now what are thought and reason if the processes that were going through this cat's mind were not both one and the other? It would be childish to suppose that the cat thought in words of its own, or in anything like words. Its thinking was probably conducted through the instrumentality of a series of mental images. We so habitually think in words ourselves that we find it difficult to realise thought without words at all; our difficulty, however, in imagining the particular manner in which the cat thinks has nothing to do with the matter. We must answer the question whether she thinks or no, not according to our own ease or difficulty in understanding the particular manner of her thinking, but according as her action does or does not appear to be of the same character as other action that we commonly call thoughtful. To say that the cat is not intelligent, merely on the ground that we cannot ourselves fathom her intelligence--this, as I have elsewhere said, is to make intelligence mean the power of being understood, rather than the power of understanding. This nevertheless is what, for all our boasted intelligence, we generally do. The more we can understand an animal's ways, the more intelligent we call it, and the less we can understand these, the more stupid do we declare it to be. As for plants--whose punctuality and attention to all the details and routine of their somewhat restricted lines of business is as obvious as it is beyond all praise--we understand the working of their minds so little that by common consent we declare them to have no intelligence at all.
Before concluding I should wish to deal a little more fully with Professor Max Muller's contention that there can be no reason without language, and no language without reason. Surely when two practised pugilists are fighting, parrying each other's blows, and watching keenly for an unguarded point, they are thinking and reasoning very subtly the whole time, without doing so in words. The machination of their thoughts, as well as its expression, is actual--I mean, effectuated and expressed by action and deed, not words. They are unaware of any logical sequence of thought that they could follow in words as passing through their minds at all. They may perhaps think consciously in words now and again, but such thought will be intermittent, and the main part of the fighting will be done without any internal concomitance of articulated phrases. Yet we cannot doubt that their action, however much we may disapprove of it, is guided by intelligence and reason; nor should we doubt that a reasoning process of the same character goes on in the minds of two dogs or fighting-cocks when they are striving to master their opponents.
Do we think in words, again, when we wind up our watches, put on our clothes, or eat our breakfasts? If we do, it is generally about something else. We do these things almost as much without the help of words as we wink or yawn, or perform any of those other actions that we call reflex, as it would almost seem because they are done without reflection. They are not, however, the less reasonable because wordless.
Even when we think we are thinking in words, we do so only in half measure. A running accompaniment of words no doubt frequently attends our thoughts; but, unless we are writing or speaking, this accompaniment is of the vaguest and most fitful kind, as we often find out when we try to write down or say what we are thinking about, though we have a fairly definite notion of it, or fancy that we have one, all the time. The thought is not steadily and coherently governed by and moulded in words, nor does it steadily govern them. Words and thought interact upon and help one another, as any other mechanical appliances interact on and help the invention that first hit upon them; but reason or thought, for the most part, flies along over the heads of words, working its own mysterious way in paths that are beyond our ken, though whether some of our departmental personalities are as unconscious of what is passing, as that central government is which we alone dub with the name of "we" or "us," is a point on which I will not now touch.
I cannot think, then, that Professor Max Muller's contention that thought and language are identical--and he has repeatedly affirmed this--will ever be generally accepted. Thought is no more identical with language than feeling is identical with the nervous system. True, we can no more feel without a nervous system than we can discern certain minute organisms without a microscope. Destroy the nervous system, and we destroy feeling. Destroy the microscope, and we can no longer see the animalcules; but our sight of the animalcules is not the microscope, though it is effectuated by means of the microscope, and our feeling is not the nervous system, though the nervous system is the instrument that enables us to feel.
The nervous system is a device which living beings have gradually perfected--I believe I may say quite truly--through the will and power which they have derived from a fountain-head, the existence of which we can infer, but which we can never apprehend. By the help of this device, and in proportion as they have perfected it, living beings feel ever with greater definiteness, and hence formulate their feelings in thought with more and more precision. The higher evolution of thought has reacted on the nervous system, and the consequent higher evolution of the nervous system has again reacted upon thought. These things are as power and desire, or supply and demand, each one of which is continually outstripping, and being in turn outstripped by the other; but, in spite of their close connection and interaction, power is not desire, nor demand supply. Language is a device evolved sometimes by leaps and bounds, and sometimes exceedingly slowly, whereby we help ourselves alike to greater ease, precision, and complexity of thought, and also to more convenient interchange of thought among ourselves. Thought found rude expression, which gradually among other forms assumed that of words. These reacted upon thought, and thought again on them, but thought is no more identical with words than words are with the separate letters of which they are composed.
To sum up, then, and to conclude. I would ask you to see the connection between words and ideas, as in the first instance arbitrary. No doubt in some cases an imitation of the cry of some bird or wild beast would suggest the name that should be attached to it; occasionally the sound of an operation such as grinding may have influenced the choice of the letters g, r, as the root of many words that denote a grinding, grating, grasping, crushing, action; but I understand that the number of words due to direct imitation is comparatively few in number, and that they have been mainly coined as the result of connections so far-fetched and fanciful as to amount practically to no connection at all. Once chosen, however, they were adhered to for a considerable time among the dwellers in any given place, so as to become acknowledged as the vulgar tongue, and raise readily in the mind of the inhabitants of that place the ideas with which they had been artificially associated.
As regards our being able to think and reason without words, the Duke of Argyll has put the matter as soundly as I have yet seen it stated. "It seems to me," he wrote, "quite certain that we can and do constantly think of things without thinking of any sound or word as designating them. Language seems to me to be necessary for the progress of thought, but not at all for the mere act of thinking. It is a product of thought, an expression of it, a vehicle for the communication of it, and an embodiment which is essential to its growth and continuity; but it seems to me altogether erroneous to regard it as an inseparable part of cogitation."
The following passages, again, are quoted from Sir William Hamilton in Professor Max Muller's own book, with so much approval as to lead one to suppose that the differences between himself and his opponents are in reality less than he believes them to be:--
"Language," says Sir W. Hamilton, "is the attribution of signs to our cognitions of things. But as a cognition must have already been there before it could receive a sign, consequently that knowledge which is denoted by the formation and application of a word must have preceded the symbol that denotes it. A sign, however, is necessary to give stability to our intellectual progress--to establish each step in our advance as a new starting-point for our advance to another beyond. A country may be overrun by an armed host, but it is only conquered by the establishment of fortresses. Words are the fortresses of thought. They enable us to realise our dominion over what we have already overrun in thought; to make every intellectual conquest the base of operations for others still beyond."
"This," says Professor Max Muller, "is a most happy illustration," and he proceeds to quote the following, also from Sir William Hamilton, which he declares to be even happier still.
"You have all heard," says Sir William Hamilton, "of the process of tunnelling through a sandbank. In this operation it is impossible to succeed unless every foot, nay, almost every inch of our progress be secured by an arch of masonry before we attempt the excavation of another. Now language is to the mind precisely what the arch is to the tunnel. The power of thinking and the power of excavation are not dependent on the words in the one case or on the mason-work in the other; but without these subsidiaries neither could be carried on beyond its rudimentary commencement. Though, therefore, we allow that every movement forward in language must be determined by an antecedent movement forward in thought, still, unless thought be accompanied at each point of its evolutions by a corresponding evolution of language, its further development is arrested."
Man has evolved an articulate language, whereas the lower animals seem to be without one. Man, therefore, has far outstripped them in reasoning faculty as well as in power of expression. This, however, does not bar the communications which the lower animals make to one another from possessing all the essential characteristics of language, and as a matter of fact, wherever we can follow them we find such communications effectuated by the aid of arbitrary symbols covenanted upon by the living beings that wish to communicate, and persistently associated with certain corresponding feelings, states of mind, or material objects. Human language is nothing more than this in principle, however much further the principle has been carried in our own case than in that of the lower animals.
This being admitted, we should infer that the thought or reason on which the language of men and animals is alike founded differs as between men and brutes in degree but not in kind. More than this cannot be claimed on behalf of the lower animals, even by their most enthusiastic admirer.
THE DEADLOCK IN DARWINISM {20}--PART I
It will be readily admitted that of all living writers Mr. Alfred Russel Wallace is the one the peculiar turn of whose mind best fits him to write on the subject of natural selection, or the accumulation of fortunate but accidental variations through descent and the struggle for existence. His mind in all its more essential characteristics closely resembles that of the late Mr. Charles Darwin himself, and it is no doubt due to this fact that he and Mr. Darwin elaborated their famous theory at the same time, and independently of one another. I shall have occasion in the course of the following article to show how misled and misleading both these distinguished men have been, in spite of their unquestionable familiarity with the whole range of animal and vegetable phenomena. I believe it will be more respectful to both of them to do this in the most out-spoken way. I believe their work to have been as mischievous as it has been valuable, and as valuable as it has been mischievous; and higher, whether praise or blame, I know not how to give. Nevertheless I would in the outset, and with the utmost sincerity, admit concerning Messrs. Wallace and Darwin that neither can be held as the more profound and conscientious thinker; neither can be put forward as the more ready to acknowledge obligation to the great writers on evolution who had preceded him, or to place his own developments in closer and more conspicuous historical connection with earlier thought upon the subject; neither is the more ready to welcome criticism and to state his opponent's case in the most pointed and telling way in which it can be put; neither is the more quick to encourage new truth; neither is the more genial, generous adversary, or has the profounder horror of anything even approaching literary or scientific want of candour; both display the same inimitable power of putting their opinions forward in the way that shall best ensure their acceptance; both are equally unrivalled in the tact that tells them when silence will be golden, and when on the other hand a whole volume of facts may be advantageously brought forward. Less than the foregoing tribute both to Messrs. Darwin and Wallace I will not, and more I cannot pay.
Let us now turn to the most authoritative exponent of latter-day evolution--I mean to Mr. Wallace, whose work, entitled "Darwinism," though it should have been entitled "Wallaceism," is still so far Darwinistic that it develops the teaching of Mr. Darwin in the direction given to it by Mr. Darwin himself--so far, indeed, as this can be ascertained at all--and not in that of Lamarck. Mr. Wallace tells us, on the first page of his preface, that he has no intention of dealing even in outline with the vast subject of evolution in general, and has only tried to give such an account of the theory of natural selection as may facilitate a clear conception of Darwin's work. How far he has succeeded is a point on which opinion will probably be divided. Those who find Mr. Darwin's works clear will also find no difficulty in understanding Mr. Wallace; those, on the other hand, who find Mr. Darwin puzzling are little likely to be less puzzled by Mr. Wallace. He continues:--
"The objections now made to Darwin's theory apply solely to the particular means by which the change of species has been brought about, not to the fact of that change."
But "Darwin's theory"--as Mr. Wallace has elsewhere proved that he understands--has no reference "to the fact of that change"--that is to say, to the fact that species have been modified in course of descent from other species. This is no more Mr. Darwin's theory than it is the reader's or my own. Darwin's theory is concerned only with "the particular means by which the change of species has been brought about"; his contention being that this is mainly due to the natural survival of those individuals that have happened by some accident to be born most favourably adapted to their surroundings, or, in other words, through accumulation in the common course of nature of the more lucky variations that chance occasionally purveys. Mr. Wallace's words, then, in reality amount to this, that the objections now made to Darwin's theory apply solely to Darwin's theory, which is all very well as far as it goes, but might have been more easily apprehended if he had simply said, "There are several objections now made to Mr. Darwin's theory."
It must be remembered that the passage quoted above occurs on the first page of a preface dated March 1889, when the writer had completed his task, and was most fully conversant with his subject. Nevertheless, it seems indisputable either that he is still confusing evolution with Mr. Darwin's theory, or that he does not know when his sentences have point and when they have none.
I should perhaps explain to some readers that Mr. Darwin did not modify the main theory put forward, first by Buffon, to whom it indisputably belongs, and adopted from him by Erasmus Darwin, Lamarck, and many other writers in the latter half of the last century and the earlier years of the present. The early evolutionists maintained that all existing forms of animal and vegetable life, including man, were derived in course of descent with modification from forms resembling the lowest now known.
Mr. Darwin went as far as this, and farther no one can go. The point at issue between him and his predecessors involves neither the main fact of evolution, nor yet the geometrical ratio of increase, and the struggle for existence consequent thereon. Messrs. Darwin and Wallace have each thrown invaluable light upon these last two points, but Buffon, as early as 1756, had made them the keystone of his system. "The movement of nature," he then wrote, "turns on two immovable pivots: one, the illimitable fecundity which she has given to all species: the other, the innumerable difficulties which reduce the results of that fecundity." Erasmus Darwin and Lamarck followed in the same sense. They thus admit the survival of the fittest as fully as Mr. Darwin himself, though they do not make use of this particular expression. The dispute turns not upon natural selection, which is common to all writers on evolution, but upon the nature and causes of the variations that are supposed to be selected from and thus accumulated. Are these mainly attributable to the inherited effects of use and disuse, supplemented by occasional sports and happy accidents? Or are they mainly due to sports and happy accidents, supplemented by occasional inherited effects of use and disuse?