The Constitution only guarantees the American people the right to pursue happiness. You have to catch it yourself. A table, a chair, a bowl of fruit and a violin; what else does a man need to be happy?

You can never solve a problem on the level on which it was created.

What is this frog and mouse battle among the mathematicians?

I am satisfied with the mystery of the eternity of life.

Enough for me is the mystery of the eternity of life, and the inkling of the marvelous structure of reality. There is in this neither a will nor a goal, nor a must, but only sheer being.

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

Even if only 2 percent of those assigned to perform military service should announce their refusal to fight, governments would be powerless, they would not dare send such a large number of people to jail.