I see in Nature a magnificent structure... that must fill a thinking person with a feeling of humility.

All I want to do is learn to think like God. All the rest is just details.

The really valuable thing in the pageant of human life seems to me not the political state, but the creative, sentient individual, the personality; it alone creates the noble and the sublime, while the herd as such remains dull in thought and dull in feeling.

A theory is something nobody believes, except the person who made it. An experiment is something everybody believes, except the person who made it.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

If I had an hour to solve a problem and my life depended on the solution, I would spend the first 55 minutes determining the proper question to ask, for once I know the proper question, I could solve the problem in less than five minutes.

Life is a preparation for the future; and the best preparation for the future is to live as if there were none.