If you think only of evil, then you become pessimistic and hopeless like Freud. But if you think there is no evil, then you're just one more deluded Pollyanna.

If you only have a hammer, you tend to see every problem as a nail.

Education can become a self-fulfilling activity, liberating in and of itself.

One's only rival is one's own potentialities. One's only failure is failing to live up to one's own possibilities. In this sense, every man can be a king, and must therefore be treated like a king.

If you can't feed a hundred people, then feed just one.

My only friends were boys, and I was just one more of them.