The old emphasis upon superficial differences that separate peoples must give way to education for citizenship in the human community.

What a man really says when he says that someone else can be persuaded by force, is that he himself is incapable of more rational means of communication.

I've learned that next to the atomic bomb, the greatest danger is defeatism, despair, and inadequate awareness of what human beings possess. I feel that any problem that can be defined is capable of being resolved. Out of this has come my conviction that no person knows enough to be a pessimist.

Ten minutes of genuine belly laughter had an anesthetic effect and would give me at least two hours of pain-free sleep.

What was most significant about the lunar voyage was not that men set foot on the moon but that they set eye on the earth.

I cannot affirm God if I fail to affirm man. Therefore, I affirm both. Without a belief in human unity I am hungry and incomplete. Human unity is the fulfillment of diversity. It is the harmony of opposites. It is a many-stranded texture, with color and depth.

The purpose of education is to enable us to develop to the fullest that which is inside us