I wouldn't want to live if I did not have my work. In any case, it's good that I'm already old and personally don't have to count on a prolonged future.

The thinking it took to get us into this mess is not the same thinking that is going to get us out of it.

Mankind must give up war in the Atomic Era. What is at stake is the life or death of humanity.

Violence sometimes may have cleared away obstructions quickly, but it never has proved itself creative.

I wouldn't want to live if I did not have my work. In any case, it's good that I'm already old and personally don't have to count on a prolonged future.

A theory can be proved by experiment; but no path leads from experiment to the birth of a theory.

The aim (of education) must be the training of independently acting and thinking individuals who, however, see in the service to the community their highest life problem.