Playfullness is the essential feature of productive thought.

The only sure way to avoid making mistakes is to have no new ideas.

There is one ray of hope. It seems to me that today the responsible leaders of the several peoples have, in the main, the honest will to abolish war.

Am I, or the others crazy?

If I would follow your advice and Jesus could perceive it, he, as a Jewish teacher, surely would not approve of such behavior.

Creativity is intelligence having fun.

I don't believe in mathematics.