Science has become adult; I am not sure whether scientists have.

Self-confidence is an important ingredient that makes for a successful physicist.

It was absolutely marvelous working for Pauli. You could ask him anything. There was no worry that he would think a particular question was stupid, since he thought all questions were stupid.

When things get tough, there are two things that make life worth living: Mozart, and quantum mechanics

In man's brain the impressions from outside are not merely registered; they produce concepts and ideas. They are the imprint of the external world upon the human brain.

God is so great, he does not even need to exist.

In a Jewish theological seminar there was an hours-long discussion about proofs of the existence of God. After some hours, one rabbi got up and said, "God is so great, he does not even need to exist."