God is dead, God remains dead, and we have killed him.

We must be physicists in order to be creative since so far codes of values and ideals have been constructed in ignorance of physics or even in contradiction to physics.

Man does not strive for happiness; only the Englishman does that.

When we are tired, we are attacked by ideas we conquered long ago.

A philosophical mythology lies concealed in language, which breaks out again at every moment, no matter how cautious we may be.

Anecdote: Greatness Means Leading the Way. No stream is large and copious of itself, but becomes great by receiving and leading on so many tributary streams. It is so, also, with all intellectual greatness, It is only a question of someone indicating the direction to be followed by so many affluent; not whether he was richly or poorly gifted originally.

Insanity in individuals is something rare - but in groups, parties, nations and epochs, it is the rule.