America is today the hope of all honorable men who respect the rights of their fellow men and who believe in the principle of freedom and justice.

It is impossible to get anywhere without sinning against reason.

The secret to creativity is knowing how to hide your sources.

How can cosmic religious feeling be communicated from one person to another, if it can give rise to no definite notion of a God and no theology? In my view, it is the most important function of art and science to awaken this feeling and keep it alive in those who are receptive to it.

Marie Curie is, of all celebrated beings, the only one whom fame has not corrupted.

I believe that a simple and unassuming manner of life is best for everyone, best both for the body and the mind.

It is difficult even to attach a precise meaning to the term "scientific truth." So different is the meaning of the word "truth" according to whether we are dealing with a fact of experience, a mathematical proposition or a scientific theory. "Religious truth" conveys nothing clear to me at all.