Striving for peace and preparing for war are incompatible with each other, and in our time more so than ever.

I don't know what weapons will be used in the Third World War. But I can tell you what they'll use in the Fourth - rocks!

One does not make wars less likely by formulationg rules of warfare... war cannot be humanized. It can only be eliminated.

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

I believe in standardizing automobiles. I do not believe in standardizing human beings. Standardization is a great peril which threatens American culture.

My only genius talent is inquisitiveness.

It is strange to be known so universally and yet to be so lonely.