To know reality is to accept it, and eventually to love it.

The only use for an atomic bomb is to keep somebody else from using one.

The Nobel Prize is an honor unique in the world in having found its way into the hearts and minds of simple people everywhere. It casts a light of peace and reason upon us all; and for that I am especially grateful.

The concept of war crimes is an American invention.

Science goes from question to question; big questions, and little, tentative answers. The questions as they age grow ever broader, the answers are seen to be more limited.

Nuclear weapons offer us nothing but a balance of terror, and a balance of terror is still terror.

Dropping those atomic bombs on Hiroshima and Nagasaki was a war crime.

A scientist should be the happiest of men.