The only good is knowledge, and the only evil ignorance.
Thales was asked what was most difficult to man; he answered: "To know one's self."
It takes a wise man to discover a wise man.
Time is the most valuable thing that a man can spend.
The foundation of every state is the education of its youth.
A friend is one soul abiding in two bodies.
As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task.
I am not an Athenian or a Greek, but a citizen of the world.
The vine bears three kinds of grapes: the first of pleasure, the second of intoxication, the third of disgust.
Most men are within a finger's breadth of being mad.
Blushing is the color of virtue.
Calumny is only the noise of madmen.
When I look upon seamen, men of science and philosophers, man is the wisest of all beings; when I look upon priests and prophets nothing is as contemptible as man.
Wise leaders generally have wise counselors because it takes a wise person themselves to distinguish them.
Wise kings generally have wise counselors; and he must be a wise man himself who is capable of distinguishing one.
I threw my cup away when I saw a child drinking from his hands at the trough.
Dogs and philosophers do the greatest good and get the fewest rewards.
We have two ears and one tongue so that we would listen more and talk less.
I know nothing, except the fact of my ignorance.
There is only a finger's difference between a wise man and a fool.
