There are no such things as applied sciences, only applications of science.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

Where they have burned books, they will end in burning human beings.

I think the best relationships are the ones where you can be completely yourself.

I like talking to a brick wall, it’s the only thing in the world that never contradicts me.