If I were not a Jew I would be a Quaker.

Let every man judge according to his own standards, by what he has himself read, not by what others tell him.

This subject brings me to that vilest offspring of the herd mind -- the odious militia. The man who enjoys marching in line and file to the strains of music falls below my contempt; he received his great brain by mistake -- the spinal cord would have been amply sufficient. This heroism at command, this senseless violence, this accursed bombast of patriotism -- how intensely I despise them! War is low and despicable, and I had rather be smitten to shreds than participate in such doings.

I regard class differences as contrary to justice and, in the last resort, based on force.

Gravity is a response to geometry.

You have to learn the rules of the game. And then you have to play better than anyone else.

When men are engaged in war and conquest, the tools of science become as dangerous as a razor in the hands of a child of three. We must not condemn man because his inventiveness and patient conquest of the forces of nature are being exploited for false and destructive purposes. Rather, we should remember that the fate of mankind hinges entirely upon man’s moral development.