Whoever is careless with the truth in small matters cannot be trusted with important matters.

Whoever undertakes to set himself up as a judge of Truth and Knowledge is shipwrecked by the laughter of the gods.

He who joyfully marches to music in rank and file has already earned my contempt. He has been given a large brain by mistake, since for him the spinal cord would suffice.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

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

I am not only a pacifist but a militant pacifist. I am willing to fight for peace. Nothing will end war unless the people themselves refuse to go to war.

It is my conviction that killing under the cloak of war is nothing but an act of murder.

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.

You cannot simultaneously prevent and prepare for war.

Reality is merely an illusion, albeit a very persistent one.