The very emphasis of the commandment: Thou shalt not kill, makes it certain that we are descended from an endlessly long chain of generations of murderers, whose love of murder was in their blood as it is perhaps also in ours.

Intolerance of groups is often, strangely enough, exhibited more strongly against small differences than against fundamental ones.

From error to error one discovers the entire truth.

The conscious mind may be compared to a fountain playing in the sun and falling back into the great subterranean pool of subconscious from which it rises.

The wish to be able to fly is to be understood as nothing else than a longing to be capable of sexual performance.

I have no concern with any economic criticisms of the communist system; I cannot inquire into whether the abolition of private property is expedient or advantageous. But I am able to recognize that the psychological premisses on which the system is based are an untenable illusion. In abolishing private property we deprive the human love of aggression of one of its instruments... but we have in no way altered the differences in power and influence which are misused by aggressiveness.

I cannot face with comfort the idea of life without work; work and the free play of the imagination are for me the same thing, I take no pleasure in anything else.