But the question as to the nature of the εἶδος became a vital question in every system of philosophy. Granting, for instance, that women in every clime and country formed one species, it was soon asked what constituted a species? If all women shared a common form, what was that form? Where was it? So long as it was supposed that all women descended from Eve, the difficulty might be slurred over by the name of heredity. But the more thoughtful would ask even then how it was that, while all individual women came and went and vanished, the form in which they were cast remained the same?
Here you see how philosophical mythology springs up. The very question what εἶδος or species or form was, and where these things were kept, changed those words from predicates into subjects. Εἶδος was conceived as something independent and substantial, something within or above the individuals participating in it, something unchangeable and eternal. Soon there arose as many εἴδη or forms or types as there were general concepts. They were considered the only true realities of which the phenomenal world is only as a shadow that soon passeth away. Here we have, in fact, the origin of Plato's ideas, and of the various systems of idealism which followed his lead, while the opposite opinions that ideas have no independent existence, and that the one is nowhere found except in the many (τὸ ἕν παρὰ τὰ πολλά), was strenuously defended by Aristotle and his followers.[17]
The same red thread runs through the whole philosophy of the Middle Ages. Men were cited before councils and condemned as heretics because they declared that animal, man, or woman were mere names, and that they could not bring themselves to believe in an ideal animal, an ideal man, an ideal woman as the invisible, supernatural, or metaphysical types of the ordinary animal, the individual man, the single woman. Those philosophers, called Nominalists, in opposition to the Realists, declared that all general terms were names only, and that nothing could claim reality but the individual.
We cannot follow this controversy further, as it turns up again between Locke and Leibniz, between Herbart and Hegel. Suffice it to say that the knot, as it was tied by language, can be untied by the science of language alone, which teaches us that there is and can be no such thing as "a name only." That phrase ought to be banished from all works on philosophy. A name is and always has been the subjective side of our knowledge, but that subjective side is as impossible without an objective side as a key is without a lock. It is useless to ask which of the two is the more real, for they are real only by being, not two, but one. Realism is as one-sided as Nominalism. But there is a higher Nominalism, which might better be called the Science of Language, and which teaches us that, apart from sensuous perception, all human knowledge is by names and by names only, and that the object of names is always the general.
This is but one out of hundreds and thousands of cases to show how names and concepts which come to us by tradition must be submitted to very careful snuffing before they will yield a pure light. What I mean by academic teaching and academic study is exactly this process of snuffing, this changing of traditional words into living words, this tracing of modern thought back to ancient primitive thought, this living, as it were, once more, so far as it concerns us, the whole history of human thought ourselves, till we are as little afraid to differ from Plato or Aristotle as from Comte or Darwin.
Plato and Aristotle are, no doubt, great names; every schoolboy is awed by them, even though he may have read very little of their writings. This, too, is a kind of dogmatism that requires correction. Now, at University, a young student might hear the following, by no means respectful, remarks about Aristotle, which I copy from one of the greatest English scholars and philosophers:—"There is nothing so absurd that the old philosophers, as Cicero saith, who was one of them, have not some of them maintained; and I believe that scarce anything can be more absurdly said in natural philosophy than that which now is called Aristotle's Metaphysics; or more repugnant to government than much of that he hath said in his Politics; nor more ignorantly than a great part of his Ethics." I am far from approving this judgment, but I think that the shock which a young scholar receives on seeing his idols so mercilessly broken is salutary. It throws him back on his own resources; it makes him honest to himself. If he thinks the criticism thus passed on Aristotle unfair, he will begin to read his works with new eyes. He will not only construe his words, but try to reconstruct in his own mind the thoughts so carefully elaborated by that ancient philosopher. He will judge of their truth without being swayed by the authority of a great name, and probably in the end value what is valuable in Aristotle, or Plato, or any other great philosopher far more highly and honestly than if he had never seen them trodden under foot.
But do not suppose that I look upon the Universities as purely iconoclastic, as chiefly intended to teach us how to break the idols of the schools. Far from it! But I do look upon them as meant to freshen the atmosphere which we breathe at school, and to shake our mind to its very roots, as a storm shakes the young oaks, not to throw them down, but to make them grasp all the more firmly the hard soil of fact and truth! "Stand upright on thy feet" ought to be written over the gate of every college, if the epidemic of uniformity and sequacity which Mill saw approaching from China, and which since his time has made such rapid progress Westward, is ever to be stayed.
Academic freedom is not without its dangers; but there are dangers which it is safer to face than to avoid. In Germany—so far as my own experience goes—students are often left too much to themselves, and it is only the cleverest among them, or those who are personally recommended, who receive from the professors that personal guidance and encouragement which should and could be easily extended to all.
There is too much time given in the German Universities to mere lecturing, and often in simply retailing to a class what each student might read in books often in a far more perfect form. Lectures are useful if they teach us how to teach ourselves; if they stimulate; if they excite sympathy and curiosity; if they give advice that springs from personal experience; if they warn against wrong roads; if, in fact, they have less the character of a show-window than of a workshop. Half an hour's conversation with a tutor or a professor often does more than a whole course of lectures in giving the right direction and the right spirit to a young man's studies. Here I may quote the words of Professor Helmholtz, in full agreement with him. "When I recall the memory of my own University life," he writes, "and the impression which a man like Johannes Müller, the professor of physiology, made on us, I must set the highest value on the personal intercourse with teachers from whom one learns how thought works on independent heads. Whoever has come in contact but once with one or several first-class men will find his intellectual standard changed for life."
In English Universities, on the contrary, there is too little of academic freedom. There is not only guidance, but far too much of constant personal control. It is often thought that English undergraduates could not be trusted with that amount of academic freedom which is granted to German students, and that most of them, if left to choose their own work, their own time, their own books, and their own teachers, would simply do nothing. This seems to me unfair and untrue. Most horses, if you take them to the water, will drink; and the best way to make them drink is to leave them alone. I have lived long enough in English and in German Universities to know that the intellectual fibre is as strong and sound in the English as in the German youth. But if you supply a man, who wishes to learn swimming, with bladders—nay, if you insist on his using them—he will use them, but he will probably never learn to swim. Take them away, on the contrary, and depend on it, after a few aimless strokes and a few painful gulps, he will use his arms and his legs, and he will swim. If young men do not learn to use their arms, their legs, their muscles, their senses, their brain, and their heart too, during the bright years of their University life, when are they to learn it? True, there are thousands who never learn it, and who float happily on through life buoyed up on mere bladders. The worst that can happen to them is that some day the bladders may burst, and they may be left stranded or drowned. But these are not the men whom England wants to fight her battles. It has often been pointed out of late that many of those who, during this century, have borne the brunt of the battle in the intellectual warfare in England, have not been trained at our Universities, while others who have been at Oxford and Cambridge, and have distinguished themselves in after-life, have openly declared that they attended hardly any lectures in college, or that they derived no benefit from them. What can be the ground of that? Not that there is less work done at Oxford than at Leipzig, but that the work is done in a different spirit. It is free in Germany; it has now become almost compulsory in England. Though an old professor myself, I like to attend, when I can, some of the professorial lectures in Germany; for it is a real pleasure to see hundreds of young faces listening to a teacher on the history of art, on modern history, on the science of language, or on philosophy, without any view to examinations, simply from love of the subject or of the teacher. No one who knows what the real joy of learning is, how it lightens all drudgery and draws away the mind from mean pursuits, can see without indignation that what ought to be the freest and happiest years in a man's life should often be spent between cramming and examinations.