To be able to rise from the earth; to be able, from a station in outer space, to see the relationship of the planet earth to other planets; to be able to contemplate the billions of factors in precise and beautiful combination that make human existence possible; to be able to dwell on an encounter of the human brain and spirit with the universe

If the United Nations is to survive, those who represent it must bolster it; those who advocate it must submit to it; and those who believe in it must fight for it.

The essence of man is imperfection. Failure is simply a price we pay to achieve success. If we learn to embrace that new definition of failure, then we are free to start moving ahead - and failing forward.

If there is a conflict between the easy drift of prosperity and the ordeal of peace, the ordeal of peace comes first.

Nothing is more essential in the treatment of serious disease than the liberation of the patient from panic and foreboding.

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.

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