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

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

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

Conferences with open attendance are very important for the stimulation of young people or other people who are new in the field. ... The field of high-energy physics is, as you know, very strongly in the hands of a clique and it is hard for an outsider to enter.

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.

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.