Man can be scientifically manipulated.

There may be no good reasons for very many opinions that are held with passion.

It is a waste of energy to be angry with a man who behaves badly, just as it is to be angry with a car that won't go.

War does not determine who is right - only who is left.

Contempt for happiness is usually contempt for other people's happiness, and is an elegant disguise for hatred of the human race.

The first dogma which I came to disbelieve was that of free will. It seemed to me that all notions of matter were determined by the laws of dynamics and could not therefore be influenced by human wills.

Without civic morality communities perish; without personal morality their survival has no value.