I refuse to make money out of my science. My laurel is not for sale like so many bales of cotton.

We must begin to inculcate our children against militarism by educating them in the spirit of pacifism. Our schoolbooks glorify war and conceal it's horror. I would teach peace rather than war.

I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.

We sleep 1/3 of our lives away.

The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.

I do not believe that civilization will be wiped out in a war fought with the atomic bomb. Perhaps two-thirds of the people of the earth will be killed.

Women always worry about things that men forget; men always worry about things women remember.