During the last century, and part of the one before, it was widely held that there was an unreconcilable conflict between knowledge and belief.

Everybody should be ashamed who uses the wonders of science and engineering without thinking and having mentally realized not more of it than a cow realizes of the botany of the plants which it eats with pleasure.

If one day you have to choose between the world and love, remember this: If you choose the world you’ll be left without love, but if you choose love, with it you will conquer the world

If my theory of relativity is proven successful, Germany will claim me as a German and France will declare me a citizen of the world. Should my theory prove untrue, France will say that I am a German, and Germany will declare that I am a Jew.

I do know that kind fate allowed me to find a couple of nice ideas after many years of feverish labor.

When you look at yourself from a universal standpoint, something inside always reminds or informs you that there are bigger and better things to worry about.

A person starts to live when he can live outside himself.