When people tell me they've learned from experience, I tell them the trick is to learn from other people's experience.

Learning acquired in youth arrests the evil of old age; and if you understand that old age has wisdom for its food, you will so conduct yourself in youth that your old age will not lack for nourishment.

Fools call wise men fools. A wise man never calls any man a fool.

The man who is truly wise knows that he knows very little.

The world is not composed of heroes and villains, but of men and women with all the passions that God has given them. The ignorant condemn, but the wise pity.

The tongue of a fool is the key of his counsel, which, in a wise man, wisdom hath in keeping.