§ i. As to virtue we deliberate and dispute whether good sense, and justice, and rectitude can be taught: and then we are not surprised that, while the works of orators, and pilots, and musicians, and house-builders, and farmers, are innumerable, good men are only a name and expression, like Centaurs and Giants and Cyclopes, and that it is impossible to find any virtuous action without alloy of base motives, or any character free from vice: but if nature produces spontaneously anything good, it is marred by much that is alien to it, as fruit choked by weeds. Men learn to play on the harp, and to dance, and to read, and to farm, and to ride on horseback: they learn how to put on their shoes and clothes generally: people teach how to pour out wine, how to cook; and all these things cannot be properly performed, without being learned. The art of good living alone, though all those things I have mentioned only exist on its account, is untaught, unmethodical, inartistic, and supposed to come by the light of nature!
§ ii. O sirs, by asserting that virtue is not a thing to be taught, why are we making it unreal? For if teaching produces it, the deprivation of teaching prevents it. And yet, as Plato says, a discord and false note on the lyre makes not brother go to war with brother, nor sets friends at variance, nor makes states hostile to one another, so as to do and suffer at one another's hands the most dreadful things:1 nor can anyone say that there was ever a dissension in any city as to the pronunciation of Telchines: nor in a private house any difference between man and wife as to woof and warp.