If you want different results, do not do the same things.

The strength of the Constitution lies entirely in the determination of each citizen to defend it. Only if every single citizen feels duty bound to do his share in this defense are the constitutional rights secure.

Without the sense of fellowship with men of like mind... life would have seemed to me empty.

The more cruel the wrong that men commit against an individual or a people, the deeper their hatred and contempt for their victim.

There's something to be said for relatives...it has to be said because it's unprintable!

The only way to escape the corruptible effect of praise is to go on working.

I cannot seriously believe in it [quantum theory] because the theory cannot be reconciled with the idea that physics should represent a reality in time and space, free from spooky actions at a distance [spukhafte Fernwirkungen].