of labour must not be forgotten. The art of war cannot be learned in a day, and there must be a natural aptitude for military duties. There will be some warlike natures *375* who have this aptitude--dogs keen of scent, swift of foot to pursue, and strong of limb to fight. And {xxxiv} as spirit is the foundation of courage, such natures, whether of men or animals, will be full of spirit. But these spirited natures are apt to bite and devour one another; the union of gentleness to friends and fierceness against enemies appears to be an impossibility, and the guardian of a State requires both qualities. Who then can be a guardian? The image of the dog suggests an answer. *376* For dogs are gentle to friends and fierce to strangers. Your dog is a philosopher who judges by the rule of knowing or not knowing; and philosophy, whether in man or beast, is the parent of gentleness. The human watchdogs must be philosophers or lovers of learning which will make them gentle. And how are they to be learned without education? But what shall their education be? Is any better than the old-fashioned sort which is comprehended under the name of music and gymnastic? *377* Music includes literature, and literature is of two kinds, true and false. 'What do you mean?' he said. I mean that children hear stories before they learn gymnastics, and that the stories are either untrue, or have at most one or two grains of truth in a bushel of falsehood. Now early life is very impressible, and children ought not to learn what they will have to unlearn when they grow up; we must therefore have a censorship of nursery tales, banishing some and keeping others. Some of them are very improper, as we may see in the great instances of Homer and Hesiod, who not only tell lies but bad lies; stories about Uranus and Saturn, *378* which are immoral as well as false, and which should never be spoken of to young persons, or indeed at all; or, if at all, then in a mystery, after the sacrifice, not of an Eleusinian pig, but of some unprocurable animal. Shall our youth be encouraged to beat their fathers by the example of Zeus, or our citizens be incited to quarrel by hearing or seeing representations of strife among the gods? Shall they listen to the narrative of Hephaestus binding his mother, and of Zeus sending him flying for helping her when she was beaten? Such tales may possibly have a mystical interpretation, but the young are incapable of understanding allegory. *379* If any one asks what tales are to be allowed, we will answer that we are legislators and not book-makers; we only lay down the principles according to which books are to be written; to write them is the duty of others.