The beginning of wisdom is the definition of terms.

Wisdom comes alone through suffering.

Wise men learn more from fools than fools from wise men.

A fool sees not the same tree that a wise man sees.

Wisdom was not at the top of the graduate-school mountain, but there at the sandpile at Sunday School.

He dares to be a fool, and that is the first step in the direction of wisdom.

No man is wise enough by himself.

The wise man can pick up a grain of sand and envision a whole universe. But the stupid man will just lay down on some seaweed and roll around in it until he's completely draped in it. Then he'll stand up and go, 'Hey, I'm Vine Man.'

It's necessary to be slightly underemployed if you are to do something significant.

No one is wise at all times.