Everyone is entitled to be wrong about their opinions, but no one has the right to be wrong about their facts.

I was the son of an immigrant. I experienced bigotry, intolerance and prejudice, even as so many of you have. Instead of allowing these thing to embitter me, I took them as spurs to more strenuous effort. .

We can't cross that bridge until we come to it, but I always like to lay down a pontoon ahead of time.

You don't have to blow out the other person's light to let your own shine.

I have known men who could see through the motivations of others with the skill of a clairvoyant; only to prove blind to their own mistakes. I have been one of those men.

You can talk about capitalism and communism and all that sort of thing, but the important thing is the struggle everybody is engaged in to get better living conditions, and they are not interested too much in government.

Peace is never long preserved by weight of metal or by an armament race. Peace can be made tranquil and secure only by understanding and agreement fortified by sanctions. We must embrace international cooperation or international disintegration. Science has taught us how to put the atom to work. But to make it work for good instead of for evil lies in the domain dealing with the principles of human dignity. We are now facing a problem more of ethics than of physics.