There is a doctrine whispered in secret that a man is a prisoner who has no right to open the door and run away; this is a great mystery which I do not quite understand.

Only the extremely ignorant or the extremely intelligent can resist change.

Prefer knowledge to wealth, for the one is transitory, the other perpetual.

By far the greatest and most admirable form of wisdom is that needed to plan and beautify cities and human communities.

One who is injured ought not to return the injury, for on no account can it be right to do an injustice.

Antiphon, as another man gets pleasure from a good horse, or a dog, or a bird, I get even more pleasure from good friends. And if I have something good, I teach it to them, and I introduce them to others who will be useful to them with respect to virtue. And together with my friends I go through the treasures of wise men of old which they left behind written in books, and we peruse them. If we see something good, we pick it out and hold it to be a great profit, if we are able to prove useful to one another.

I know you won't believe me, but the highest form of Human Excellence is to question oneself and others.