Plato, in laying down the rules by which the poets are to be guided in speaking about divine things to the citizens of the ideal republic, forbids all those episodes of mythology which represent the gods as assuming various forms, and visiting the earth in disguise. Below the [119] express reasons which he assigns for this rule, we may perhaps detect that instinctive antagonism to the old Heraclitean philosophy of perpetual change, which forces him, in his theory of morals and the state, of poetry and music, of dress and manners even, and of style in the very vessels and furniture of daily life, on an austere simplicity, the older Dorian or Egyptian type of a rigid, eternal immobility. The disintegrating, centrifugal influence, which had penetrated, as he thought, political and social existence, making men too myriad-minded, had laid hold on the life of the gods also, and, even in their calm sphere, one could hardly identify a single divine person as himself, and not another. There must, then, be no doubling, no disguises, no stories of transformation. The modern reader, however, will hardly acquiesce in this "improvement" of Greek mythology. He finds in these stories, like that, for instance, of the appearance of Athene to Telemachus, in the first book of the Odyssey, which has a quite biblical mysticity and solemnity,--stories in which, the hard material outline breaking up, the gods lay aside their visible form like a garment, yet remain essentially themselves,--not the least spiritual element of Greek religion, an evidence of the sense therein of unseen presences, which might at any moment cross a man's path, to be recognised, in half disguise, by the more delicately trained eye, here or there, by one and not by [120] another. Whatever religious elements they lacked, they had at least this sense of subtler and more remote ways of personal presence.