War cannot be humanized. It can only be abolished.

Schools need not preach political doctrine to defend democracy. If they shape men capable of critical thought and trained in social attitudes, that is all that is necessary.

[Mystery] is the fundamental emotion that stands at the cradle of true art and true science.

I think that a particle must have a separate reality independent of the measurements. That is an electron has spin, location and so forth even when it is not being measured. I like to think that the moon is there even if I am not looking at it.

Thinking is hard work; that's why so few do it.

Is it not better for a man to die for a cause in which he believes, such as peace, than to suffer for a cause in which he does not believe, such as war?

The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking.