[323c]
must needs partake of it in some way or other, or else not be of human kind.
Take my word for it, then, that they have good reason for admitting everybody as adviser on this virtue, owing to their belief that everyone has some of it; and next, that they do not regard it as natural or spontaneous, but as something taught and acquired after careful preparation by those who acquire it,—of this I will now endeavor to convince you.