When Thales was asked what was difficult, he said, To know one's self. And what was easy, To advise another.
Diogenes LaertiusAristippus being asked what were the most necessary things for well-born boys to learn, said, "Those things which they will put in practice when they become men.
Diogenes LaertiusHeraclitus says that Pittacus, when he had got Alcรฆus into his power, released him, saying, "Forgiveness is better than revenge.
Diogenes Laertius