Today we must abandon competition and secure cooperation. This must be the central fact in all our considerations of international affairs; otherwise we face certain disaster. Past thinking and methods did not prevent world wars. Future thinking must prevent wars...The stakes are immense, the task colossal the time is short. But we may hope- we must hope- that man's own creation, man's own genius, will not destroy him.

Falling in love is not at all the most stupid thing that people do - but gravitation cannot be held responsible for it.

An expert is a person who has few new ideas; a beginner is a person with many.

Logic will get you from A to B. Imagination will take you everywhere.

The Devil craps on the big pile

The most important human endeavor is the striving for morality in our actions.

Each act is an island in time, to be judged on its own.