The economic anarchy of capitalist society as it exists today is, in my opinion, the real source of evil.

My internal and external life depend so much on the work of others that I must make an extreme effort to give as much as I receive.

The scientist is activated by a wonder and awe before the mysterious comprehensibility of the universe which is yet finally beyond his grasp. In its profoundest depths it is inaccessible to man.

In my opinion there is no other salvation for civilization and even for the human race than the creation of a world government with security on the basis of law. As long as there are sovereign states with their separate armaments and armament secrets, new world wars cannot be avoided.

What physics looks for: The simplest possible system of thought which will bind together the observed facts.

It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing...

Do you believe in miracles? Well, you should. In fact, life itself is a big miracle. There are so many things that are beyond our understanding. There are two ways to live: you can live as if nothing is a miracle; you can live as if everything is a miracle.