[Asked about a book in which 100 Nazi professors charged him with scientific error.] Were I wrong, one professor would have been quite enough.

We will never be able to solve the problems of tomorrow with the thinking of today

If a man aspires towards a righteous life, his first act of abstinence is from injury to animals.

Enjoying the joys of others and suffering with them-these are the best guides for man.

My feeling is religious insofar as I am imbued with the consciousness of the insufficiency of the human mind to understand more deeply the harmony of the Universe which we try to formulate as "laws of nature".

E=mc2. Energy equals mass times the speed of light squared. The original statement is: If a body gives off the energy L in the form of radiation, its mass diminishes by L/c2. Ist die Tragheit eines Korpers von Seinem Energieghalt Abhangig? 1905

I believe the most important mission of the state is to protect the individual and make it possible for him to develop into a creative personality.