And this is prudence in affairs private as well as public; he will learn to order his own house in the best manner, and he will be able to speak and act for the best in the affairs of the state.
Thus man had the wisdom necessary to the support of life, but political wisdom he had not; for that was in the keeping of Zeus,
that he who has no part in reverence and justice shall be put to death, for he is a plague of the state.'
He punishes for the sake of prevention, thereby clearly implying that virtue is capable of being taught.