Life's most persistent and urgent question is, 'What are you doing for others?'

The game is won one play at a time.

I know where I'm going and I know the truth, and I don't have to be what you want me to be. I'm free to be what I want.

Worry does not empty tomorrow of its sorrow. It empties today of its strength.

Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction.

A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.