I always found I was in the best of company, alone.

I have survived two wars, two wives and Hitler.

The idea of a personal God is an anthropological concept which I am unable to take seriously.

Stupidity is a personal achievement which transcends national boundaries.

A tyranny based on ... deception and maintained by terror must inevitably perish from the poison it generates within itself.

The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. He to whom the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs.

God does not care about our mathematical difficulties. He integrates empirically.