The real problem is in the hearts and minds of men. It is not a problem of physics but of ethics. It is easier to denature plutonium than to denature the evil spirit of man.

Scarcely anyone who comprehends this theory can escape its magic.

Truly novel inventions emerge only in one's youth. Later one becomes ever more experienced, famous-and foolish.

I must try, however, as best I can, although I am very conscious of the fact that our feelings and strivings are often contradictory and obscure and that they cannot be expressed in easy and simple formulas.

Here's a Challenge: Study a complicated topic in such detail that anyone interested can nod their head and understand as you explain specific concepts within the topic.

What a sad era when it is easier to smash an atom than a prejudice.

The war is won, but the peace is not.