Behind joy and laughter there may be a temperament, coarse, hard and callous. But behind sorrow there is always sorrow. Pain, unlike pleasure, wears no mask. ... For this reason there is no truth comparable to sorrow. There are times when sorrow seems to me to be the only truth. Other things may be illusions of the eye or the appetite, made to blind the one and cloy the other, but out of sorrow have the worlds been built, and at the birth of a child or a star there is pain.

A mutual misunderstanding.

Life is a nightmare that prevents one from sleeping.

His morality is all sympathy, just what morality should be

The intellect is not a serious thing, and never has been. It is an instrument on which one plays, that is all.

I don't like Switzerland; it has produced nothing but theologians and waiters.

I have said to you to speak the truth is a painful thing. To be forced to tell lies is much worse.