There are only two kinds of scholars; those who love ideas and those who hate them.

Profound sadness is always the result of an unhealthy condition of the body. ... We [should] say, 'I am sad; everything looks black to me; but external events are in no way responsible. It's my body that insists on reasoning. These are the opinions of my stomach.'

If religion is only human, and its form is man's form, it follows that everything in religion is true.

We must recognize the eloquence of our passions and refuse to be taken in. Instead of saying, 'That false friend always did despise me,' say: 'In my present state of agitation, I can't see clearly, I can't judge clearly; I am only a tragic actor who is declaiming for his own ears.' Then you will see the lights in the theater go out for lack of an audience, and the brilliant sets will be nothing more than painted cardboard.

The most difficult thing in the world is to say thinkingly what everybody says without thinking.

Two things are aesthetically perfect in the world - the clock and the cat.

Nothing is more dangerous than an idea when it is the only one you have.