Much of the most important evils that mankind have to consider are those which they inflict upon each other through stupidity or malevolence or both.

War doesn't determine who's right, it determines who's left

In view of the fact that in any future world war nuclear weapons will certainly be employed, and that such weapons threaten the continued existence of mankind, we urge the governments of the world to realize, and to acknowledge publicly, that their purpose cannot be furthered by a world war, and we urge them, consequently, to find peaceful means for the settlement of all matters of dispute between them.

Into every tidy scheme for arranging the pattern of human life, it is necessary to inject a certain dose of anarchism.

The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.

A smile happens in a flash, but its memory can last a lifetime.

I used often to go to America during Prohibition, and there was far more drunkenness there then than before; the prohibition of pornography has much the same effect.