3. In the third book of the Republic a nearer approach is made to a

theory of art than anywhere else in Plato. His views may be summed up as follows:—True art is not fanciful and imitative, but simple and ideal,—the expression of the highest moral energy, whether in action or repose. To live among works of plastic art which are of this noble and simple character, or to listen to such strains, is the best of influences,—the true Greek atmosphere, in which youth should be brought up. That is the way to create in them a natural good taste, which will have a feeling of truth and beauty in all things. For though the poets are to be expelled, still art is recognized as another aspect of reason—like love in the Symposium, extending over the same sphere, but confined to the preliminary education, and acting through the power of habit; and this conception of art is not limited to strains of music or the forms of plastic art, but pervades all nature and has a wide kindred in the world. The Republic of Plato, like the Athens of Pericles, has an artistic as well as a political side. There is hardly any mention in Plato of the creative arts; only in two or three passages does he even allude to them (Rep.; Soph.). He is not lost in rapture at the great works of Phidias, the Parthenon, the Propylea, the statues of Zeus or Athene. He would probably have regarded any abstract truth of number or figure as higher than the greatest of them. Yet it is hard to suppose that some influence, such as he hopes to inspire in youth, did not pass into his own mind from the works of art which he saw around him. We are living upon the fragments of them, and find in a few broken stones the standard of truth and beauty. But in Plato this feeling has no expression; he nowhere says that beauty is the object of art; he seems to deny that wisdom can take an external form (Phaedrus); he does not distinguish the fine from the mechanical arts. Whether or no, like some writers, he felt more than he expressed, it is at any rate remarkable that the greatest perfection of the fine arts should coincide with an almost entire silence about them. In one very striking passage he tells us that a work of art, like the State, is a whole; and this conception of a whole and the love of the newly-born mathematical sciences may be regarded, if not as the inspiring, at any rate as the regulating principles of Greek art (Xen. Mem.; and Sophist).