procreation must do so either without having drunk any wine or at least very little. For those children, that their parents begot in drink, are wont to be fond of wine and apt to turn out drunkards. And so Diogenes, seeing a youth out of his mind and crazy, said, "Young man, your father was drunk when he begot you." Let this hint serve as to procreation: now let us discuss education.
§ iv. To speak generally, what we are wont to say about the arts and sciences is also true of moral excellence, for to its perfect development three things must meet together, natural ability, theory, and practice. By theory I mean training, and by practice working at one's craft. Now the foundation must be laid in training, and practice gives facility, but perfection is attained only by the junction of all three. For if any one of these elements be wanting, excellence must be so far deficient. For natural ability without training is blind: and training without natural ability is defective, and practice without both natural ability and training is imperfect. For just as in farming the first requisite is good soil, next a good farmer, next good seed, so also here: the soil corresponds to natural ability, the training to the farmer, the seed to precepts and instruction. I should therefore maintain stoutly that these three elements were found combined in the souls of such universally famous men as Pythagoras, and Socrates, and Plato, and of all who have won undying fame. Happy at any rate and dear to the gods is he to whom any deity has vouchsafed all these elements! But if anyone thinks that those who have not good natural ability cannot to some extent make up for the deficiencies of nature by right training and practice, let such a one know that he is very wide of the mark, if not out of it altogether. For good natural parts are impaired by sloth; while inferior ability is mended by training: and while simple things escape the eyes of the careless, difficult things are reached by painstaking.