Shields and Emblems of Hellenic Air Force Units

"Virtue can be taught"
(Plato)

In a dialogue with Socrates, sophist Protagoras maintains that virtue
has to be taught by telling that the Athenians are of the same opinion.
So now, Socrates, I have shown you by both fable and argument
that virtue is teachable and this is so deemed by the Athenians,
and that it is no wonder that bad sons are born of good fathers
and good of bad.
(Plato, 'Protagoras', 328 C)