That deep emotional conviction of the presence of a superior reasoning power, which is revealed in the incomprehensible universe, forms my idea of God.

You do not really understand something unless you can explain it to your grandmother.

We cannot resolve the problems of the world by unsing the same techniques that have created them.

I would absolutely refuse any direct or indirect war service and would try to persuade my friends to do the same, regardless of the reasons for the cause of a war.

Dear Habicht, / Such a solemn air of silence has descended between us that I almost feel as if I am committing a sacrilege when I break it now with some inconsequential babble... / What are you up to, you frozen whale, you smoked, dried, canned piece of soul...?

How insidious Nature is when one is trying to get at it experimentally.

Show me a satisfied man, and I'll show you a failure.