ONE:As a result of the foregoing criticism, Aristotle distinguishes four different causes or principles by which all things are determined to be what they areMatter, Form, Agent, and Purpose.226 If, for example, we take a saw, the matter is steel; the form, a toothed blade; the agent or cause of its assuming that shape, a smith; the purpose, to divide wood or stone. When we have enumerated these four principles, we have told everything that can be known about a saw. But Aristotle could not keep the last three separate; he gradually extended the definition of form until it absorbed, or became identified with, agent and purpose.227 It was what we should call the idea of function that facilitated the transition. If the very essence or nature of a saw implies use, activity, movement, how can we define it without telling its purpose? The toothed blade is only intelligible as a cutting, dividing instrument. Again, how came the saw into being? What shaped the steel into that particular form? We have said that it was the smith. But surely that is too vague. The smith is a man, and may be able to exercise other trades as well. Suppose him to be a musician, did he make the saw in that capacity? No; and here comes in a distinction which plays an immense part in Aristotles metaphysics, whence it has passed into our every-day speech. He does not make the saw qua musician but qua smith. He can, however, in the exercise of his trade as smith make many other toolsknives, axes, and so forth. Nevertheless, had he only learned to make saws it would be enough. Therefore, he does not make335 the saw qua axe-maker, he makes it qua saw-maker. Nor, again, does he make it with his whole mind and body, but only with just those thoughts and movements required to give the steel that particular shape. Now, what are these thoughts but the idea of a saw present in his mind and passing through his eyes and hands, till it fixes itself on the steel? The immaterial form of a saw creates the real saw which we use. Let us apply the preceding analogies to a natural object; for example, a man. What is the Form, the definition of a man? Not a being possessing a certain outward shape, for then a marble statue would be a man, which it is not; nor yet a certain assemblage of organs, for then a corpse would be a man, which, according to Aristotle, criticising Democritus, it is not; but a living, feeling, and reasoning being, the end of whose existence is to fulfil all the functions involved in this definition. So, also, the creative cause of a man is another man, who directly impresses the human form on the material supplied by the female organism. In the same way, every definite individual aggregate becomes what it is through the agency of another individual representing the same type in its perfect manifestation.228What remains of the visible world after deducting its ideal elements is pure space. This, which to some seems the clearest of all conceptions, was to Plato one of the obscurest. He can only describe it as the formless substance out of which the four elements, fire, air, water, and earth, are differentiated. It closes the scale of existence and even lies half outside it, just as the Idea of Good in the Republic transcends the same scale at the other end. We may conjecture that the two principles are opposed as absolute self-identity and absolute self-separation; the whole intermediate series of forms serving to bridge over the interval between them. It will then be easy to understand how, as Aristotle tells us, Plato finally came to adopt the Pythagorean nomenclature and designated his two generating principles as the monad and the indefinite dyad. Number was formed by their combination, and all other things were made out of number. Aristotle267 complains that the Platonists had turned philosophy into mathematics; and perhaps in the interests of science it was fortunate that the transformation occurred. To suppose that matter could be built up out of geometrical triangles, as Plato teaches in the Timaeus, was, no doubt, a highly reprehensible confusion; but that the systematic study of science should be based on mathematics was an equally new and important aper?u. The impulse given to knowledge followed unforeseen directions; and at a later period Platos true spirit was better represented by Archimedes and Hipparchus than by Arcesilaus and Carneades.
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ONE:Suspicion may be all right, Larry commented, but what does it bring out, Sandy? What is your ideaThe evolution of Greek tragic poetry bears witness to the same transformation of taste. On comparing Sophocles with Aeschylus, we are struck by a change of tone analogous to that which distinguishes Thucydides from Herodotus. It has been shown in our first chapter how the elder dramatist delights in tracing events and institutions back to their first origin, and in following derivations through the steps of a genealogical sequence. Sophocles, on the other hand, limits himself to a close analysis of the action immediately represented, the motives by which his characters are in91fluenced, and the arguments by which their conduct is justified or condemned. We have already touched on the very different attitude assumed towards religion by these two great poets. Here we have only to add that while Aeschylus fills his dramas with supernatural beings, and frequently restricts his mortal actors to the interpretation or execution of a divine mandate, Sophocles, representing the spirit of Greek Humanism, only once brings a god on the stage, and dwells exclusively on the emotions of pride, ambition, revenge, terror, pity, and affection, by which men and women of a lofty type are actuated. Again (and this is one of his poetic superiorities), Aeschylus has an open sense for the external world; his imagination ranges far and wide from land to land; his pages are filled with the fire and light, the music and movement of Nature in a Southern country. He leads before us in splendid procession the starry-kirtled night; the bright rulers that bring round winter and summer; the dazzling sunshine; the forked flashes of lightning; the roaring thunder; the white-winged snow-flakes; the rain descending on thirsty flowers; the sea now rippling with infinite laughter, now moaning on the shingle, growing hoary under rough blasts, with its eastern waves dashing against the new-risen sun, or, again, lulled to waveless, windless, noonday sleep; the volcano with its volleys of fire-breathing spray and fierce jaws of devouring lava; the eddying whorls of dust; the resistless mountain-torrent; the meadow-dews; the flowers of spring and fruits of summer; the evergreen olive, and trees that give leafy shelter from dogstar heat. For all this world of wonder and beauty Sophocles offers only a few meagre allusions to the phenomena presented by sunshine and storm. No poet has ever so entirely concentrated his attention on human deeds and human passions. Only the grove of Col?nus, interwoven with his own earliest recollections, had power to draw from him, in extreme old age, a song such as the nightingale might have warbled amid those92 inviolable recesses where the ivy and laurel, the vine and olive gave a never-failing shelter against sun and wind alike. Yet even this leafy covert is but an image of the poets own imagination, undisturbed by outward influences, self-involved, self-protected, and self-sustained. Of course, we are only restating in different language what has long been known, that the epic element of poetry, before so prominent, was with Sophocles entirely displaced by the dramatic; but if Sophocles became the greatest dramatist of antiquity, it was precisely because no other writer could, like him, work out a catastrophe solely through the action of mind on mind, without any intervention of physical force; and if he possessed this faculty, it was because Greek thought as a whole had been turned inward; because he shared in the devotion to psychological studies equally exemplified by his younger contemporaries, Protagoras, Thucydides, and Socrates, all of whom might have taken for their motto the noble lines
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