An unexamined life is a life of no account.

This is...self-knowled ge-for a man to know what he knows, and what he does not know.

The right way to begin is to pay attention to the young, and make them just as good as possible.

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

What most counts is not merely to live, but to live right.

He is a man of courage who does not run away, but remains at his post and fights against the enemy.

Do not be angry with me if I tell you the truth