Possibly this does not mean very much. Then approach the matter from another side, risking a reference to one of science's pet conceits, the "question of fact." It has been for science a question of fact, of mere objective fact, whether matter made mind or mind made matter; whether this or that thing is or is not a cause of some other thing; whether certain very low, perhaps unicellular organisms show purpose in their activities or do not, are gifted with a natural tendency to social life, a real interest in their kind, or are not so gifted; or—to take just one more case—whether the changes in the brain that precede bodily movement are or are not directed by consciousness, consciousness being in one case in causal relation with the brain, and in the other only an idle, external accompaniment, an "epi-phenomenon"; but in each of these questions of objective fact we see the scientist only standing in his own light, obscuring the view of what above all else it is important to see. Are mind and matter, cause and effect, purpose, society, brain-processes and consciousness such well-established conceptions, are they such independent constants in the scientist's formulæ, that wholly uncritical questions of fact are all that one needs to ask about them? Why, when one really thinks about it, to assume, as the questions of fact of an objective science are made to assume, that anything either is or is not something else, is about as blinding and ill-advised as could well be. It has the pleasing form of open-mindedness, but only the form. It is very much as if some earnest, yearning truth-seeker should exclaim: "I would see clearly; therefore I will not open my eyes." No doubt it keeps the scientist busy, eternally busy, dealing and redealing his facts or data, as busy indeed as the playful cat that so hotly pursues her own tail, but it does not contribute much that is positive and progressive. The very best that one can say for it is that it turns the kaleidoscope of human experience, leading as it usually does to a new arrangement of hard, unchanging things. To the question, for example, about lower organisms showing purpose or social feeling in their activity, the scientist, after most careful experiments, may answer in the negative, and be quite emphatic in his answer too; but almost at once he—or some one for him—will appreciate that mankind, when scrutinized and experimented upon in the same way, under the same instruments and through the same laboratory methods, is similarly deficient; and then, somehow, the wind is taken out of his sails, since social feeling and purpose refuse to be so easily disposed of. In this case, as in all cases, the question of mere objective fact simply returns, as importunate as ever, for another reckoning, with Shelley's cloud silently laughing at its own cenotaph.
And what is the difficulty? Once more the difficulty is in the assumption, so natural to an objective science, of fixed conceptions. Are purpose and social feeling so fixed in their nature, and above all so well understood, that their presence or absence can be established by an experiment or two or ten thousand conducted on strictly objective principles? No conceptions are fixed, and instead of questions of fact we should have, what a strictly objective science cannot have, questions of meaning. Thus, not: Are low organisms, or any organisms, social or purposive? but: What, if anything, do the processes of their lives testify as to the real nature of society or purpose?
The conservative character of objective science, or the view-point in its question of fact which the conservatism determines, is the chief source of the negative attitude of science so familiar to all and so often an object of complaint. To take, perhaps, the most widely interesting case, for science to suppose that God either is or is not—because he must either be or not be the particular thing men have thought him—is to beg the theological question altogether. Indeed, for this question of God's existence and for any other question of objective fact a negative answer is almost, if not quite, a foregone conclusion, since the very putting of the question is, ipso facto, evidence that a new idea of the thing inquired about—of God, perhaps, or purpose or society—is at least just below the horizon of man's consciousness, and so that the old idea has already lost its validity. Nothing ever is where you seek it, or what you seek in it, for the simple reason that your conscious seeking has changed it. Why, then, look—perhaps with a telescope after a God in the skies—for what you should know you cannot find? Why despair when a question meets a "no" of its own dictation? The real questioner lives in a living world, in which all things change and die, yet only for rebirth, while the "objective" questioner simply cannot see that the negative of his answer can be only relative to what is already passing.
In so many ways, then, a would-be objective science is open to criticism, and affords in consequence a cause for doubt. Only subjectivity can make it fruitfully and worthily scientific. Only a change in the form of its question can make it substantially as well as formally progressive. Only a tempering of its negative answers to a merely relative meaning can make it honest. It is looking at what is not, and in a way which is artificial, and it sees everything only in the clear light of its own shadow. Surely to be scientific is human; to be objective is to rival the lover's unselfishness.
II. SCIENCE WOULD BE SPECIALISTIC.
But, secondly, there is the scientist's ideal of specialism, which is at once not less earnestly cherished and not less strikingly at constant war with itself. What specialism for science means is known at least in a general way to everybody, and that an objective science must be made up of numberless independent inquiries needs only mention, since the objective world, if really innocent of all personal or subjective relations, is necessarily manifold and discrete, being made up of a number of wholly separate details, and being approachable in every one of its parts from a number of wholly separate standpoints. The objective world apart from a subject is like a workshop without a workman—a collection of unused and so unconnected tools and materials each one of which may have an infinite number of uses; and the objective scientist views it very much as a stranger, perhaps a savage—may I be forgiven that mark—might view the lifeless shop, seeing now this thing, now that, but never the living unity of all the things. So, to repeat, as soon as the self or subject is removed and the world is turned objective, all things and all views of things must fall apart, and science as the observation of such a world can be only "special." Not so clear, however, or at least not so commonly appreciated, is the peculiar fallacy and contradiction of specialism to which attention is asked here. Once more is science to be seen as in a sense standing in its own light, since it cannot be at once special and directly and literally true and adequate.
To begin with, specialism makes vision, the mind's vision as well as the sensuous vision, dim or distorted. It may even be said to induce a species of blindness or, as virtually the same thing, to create in consciousness curious fancies, strange perversions of reality, seen not with the natural eye at all, but with the imagination, always so ingenious and so original, and one might almost add so hypnotic, in its power of suggestion over the senses. In ways and for reasons neither unknown nor unappreciated by most men, specialism even closes one's eyes and makes one dream. It makes the specialist among physicians see his special ailment in every disorder, and every disorder in his special ailment, and this so truly that merely to consult him may be to fall his victim. True, he may never be, perhaps can never be, wholly wrong, and his transgressions, conscious or unconscious, have often helped discovery, but nevertheless his situation, not to say that of his patient, is full of humour, and always among other troubles he is under the error of partiality or one-sidedness. And in science generally the specialist always does and always must dream. His dreams may be waking dreams, but he is always transgressing his own proper bounds without ever clearly comprehending that he has transgressed. Nor, be it admitted, can this necessity of dreaming be a wholly unmixed evil to science. However unfavourably it may reflect on the final, literal validity of any special science, it only shows nature, or reality, preserving her unity against the attempted violence of specialism. It shows that in spite of the specialist being all eyes for his own peculiar object, the mind that is within him and that is above all else—such, apparently, is the nature of mind—responsible not exclusively to the special and sensuous, but to the all-inclusive and essential, and is therefore bound to conserve for experience the interests of an indivisible universe in every particular thing, leads him, devotee that he is, patiently repeating his sacred syllable, into most wonderful visions. For the sake of inclusiveness and reality his mind projects his would-be special consciousness into regions of strange subtlety and marvellous logical construction; as Oriental priest or Occidental scientist he is a specialist, yet not without a mind, or a real, ever-present world, which refuses to be special, and as he dreams he comes to see, yet knows not that he sees, the whole universe. A seeing blindness, then, is this specialism; a monomania too, but, of course, conventional and respectable.
Mathematics and physics and chemistry and biology and psychology, not to say also the social sciences, all depend upon the far-seeing mystical visions of the mind, if not of the eye, upon the subtle, logical constructions which their would-be scientific specialism, their desire to know all things narrowly, forces upon them. Each one may be special, but each as it gains precision and as it becomes truly an account of the facts, under the guidance of an exacting mind that at any cost must present the whole to consciousness, conserves within itself the common universe of them all by developing under what is called the "scientific imagination" all sorts of indirections, disguises, abstractions, logical constructions for the things and view-points of the others. Each to be veracious has no choice but to be also voracious, and when, for example, a physical scientist insists on seeing his world only physically, while in reality it is of course, to say no more, a world of chemical process also, and even of vital and mental character, he is sooner or later constrained to admit to his thinking what above were called abstractions or logical constructions, but what also pass under the name of "working hypotheses." These are formally true to his physical standpoint, but any outsider in order to explain why they are hypotheses that work must call them compensating or conserving conceptions—in short, logical constructions that are, or that in part involve, substitutes for the neglected points of view, being, as it were, the secret agents of a universe refusing to be divided. To characterize them in just one more way, a science's working hypotheses, results as they are of science's blind but brilliant dreaming, many or all of them, are doors in the panelling by which the other sciences are quietly admitted to a room seemingly tightly closed to all comers. Every science, and this the more as it becomes scientific, must entertain all the others, however unwittingly. Tennyson's "flower in the crannied wall," so often plucked, is nothing in all-inclusiveness when compared with a well-developed special science. No science, physical or psychical, biological or social, ever does or ever can live to itself alone. It may will to, but it does not and it cannot. All the others live with it and for it—nay, they all live in it.
Yet in actual practice, what are these working hypotheses that work because they are compensating conceptions or doors in the panelling? No veracity without unrestrained voracity is interesting as a formula, but how verify it? Verification, or illustration, is now imperative. Illustration, however, is very difficult for a reason which the scientists now on trial must allow me to mention. The scientists know too much about the sciences, or at least of them, while I know too little. Still, as too much knowledge is often the source of obscurity, and so only a form of ignorance, my situation is not altogether hopeless. Thus, while it is true that the scientists are likely to insist, even in the face of a mind bound to preserve the unity of an indivisible universe in all the varied studies and conclusions of science, that physics is only physics and chemistry only chemistry and biology only biology and psychology only psychology, and while also all illustrations must come from the field of their special studies, and may therefore only set them more firmly in the wilful blindness of their specialism, still the principle of a conserving mind, or an eternally conserved truth or an indivisible reality, is a disturbing influence which they cannot evade. Then, too, I am forgetting and allowing them to forget a very important fact in scientific work to-day. In these times the running together or merging of different sciences, as if through something of the nature of a chemical reaction, is a very familiar phenomenon. It is as familiar, although not so loudly heralded, as that of the railroads and industrial companies; and it has been taking place with such persistence and confidence as actually to suggest a natural affinity, each of the sciences involved having the rich experience of discovering itself already in the others. This fact, then, must make illustration less difficult, since, in a way that must appeal to the scientist as no merely theoretical considerations can, it proves or goes very far toward proving what is to be illustrated. Moreover, specific illustration is hardly necessary in the sphere of the different physical sciences, or again, in that of the social or the psychological sciences, for within each one of these groups the affinity but just now referred to has been very clearly exemplified, as in the interesting case of physics, chemistry, and mathematics, which nowadays are one science, not three, and which can be held apart only on methodological grounds, not metaphysically. Illustration, accordingly, appears, after all, to be needed only for the specialism that separates the physical and the psychical sciences.
Physiological psychology and physically experimental psychology, both of them suggestive of nothing less incongruous than seething ice, are sure to come to mind at once; but also there is a mathematical psychology, comparable with a developmental mechanics and biometrics in biology, and hardly a single field of science, however apparently distant and alien in nature and interest, has not contributed something to psychology or to epistemology, the general science of knowledge. But now it is likely to be objected by some one that just because sciences, whether in clearly related or in widely separated fields, are useful to each other, just because they can serve, as they do, in the rôle of methods of each other, they are not necessarily in any real and natural affinity. May not their association be purely one of utility, involving no surrender of special individuality and requiring in any case only temporary relationship? The question is absurd. Any means that really serves an end must have something in common with the end it serves; and, again, an end that really sanctions a means, whatever the means be, must itself be, at least potentially, which is after all to say essentially, in and of the means employed. Different sciences, then, even physics and psychology, or natural science and theology, cannot be even temporarily methods of each other without partaking in some way, under some disguise or other, through some peculiarity in their conceptions or in the relations of their conceptions, of each other's subject-matter.