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

I see only with deep regret that God punishes so many of His children for their numerous stupidities, for which only He Himself can be held responsible; in my opinion, only His nonexistence could excuse Him.

Be kind to people who are different from you.

Overemphasis of the competitive system and premature specialization on the ground of immediate usefulness kill the spirit on which all cultural life depends, specialized knowledge included.

The discovery of nuclear reactions need not bring about the destruction of mankind any more than the discovery of matches.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

I appeal to all men and women, whether they be eminent or humble, to declare that they will refuse to give any further assistance to war or the preparation of war.