There is a wisdom of the head, and... there is a wisdom of the heart.

Turn your wounds into wisdom.

One who deceives will always find those who allow themselves to be deceived.

Tact is the knack of making a point without making an enemy.

He that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.

If you don't stand for something you will fall for anything.

Rational discussion is useful only when there is a significant base of shared assumptions.

Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.

Men are not prisoners of fate, but only prisoners of their own minds.

A crust eaten in peace is better than a banquet partaken in anxiety.

A person reveals his character by nothing so clearly as the joke he resents.

You can best serve civilization by being against what usually passes for it.

Respect yourself if you would have others respect you.

Promises are like crying babies in a theater, they should be carried out at once.

Tomorrow hopes we have learned something from yesterday.

At the center of your being you have the answer; you know who you are and you know what you want.

In order to change the world, you have to get your head together first

Nothing is so strong as gentleness, nothing so gentle as real strength

Knowledge speaks, but wisdom listens

To me, being an intellectual doesn't mean knowing about intellectual issues; it means taking pleasure in them.

If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.