Whoever is going to listen to the philosophers needs a considerable practice in listening. - Epictetus

If, of course, your action is wrong, just don’t do it at all, but if it’s right, why be afraid of people whose criticism is off the mark?

It is the nature of the wise to resist pleasures, but the foolish to be a slave to them.

It is the act of an ill-instructed man to blame others for his own bad condition; it is the act of one who has begun to be instructed, to lay blame on himself; and of one whose instruction is completed, neither to blame another, nor himself.