The greatest force in the human body is the natural drive of the body to heal itself - but that force in not independent of the belief system. Everything begins with belief. What we believe is the most powerful option of all.

Laughter is inner jogging.

The tragedy of life is in what dies inside a man while he lives - the death of genuine feeling, the death of inspired response, the awareness that makes it possible to feel the pain or the glory of other men in yourself.

Man is not imprisoned by habit. Great changes in him can be wrought by crisis - once that crisis can be recognized and understood.

The message from the moon which we have flashed to the far corners of this planet is that no problem need any longer be considered insoluble.

Second only to freedom, learning is the most precious option on earth.

The library is not a shrine for the worship of books. It is not a temple where literary incense must be burned or where one's one devotion to the bound book is expressed in ritual. A library, to modify the famous metaphor of Socrates, should be the delivery room for the birth of ideas - a place where history comes to life.