Without the errors involved in the assumptions of ethics, man would have remained an animal. Thus has he taken himself as something higher and imposed rigid laws upon himself.

Youth is an unpleasant period; for then it is not possible or not prudent to be productive in any sense whatsoever.

One must learn to love oneself with a wholesome and healthy love, so that one can bear to be with oneself and need not roam.

Is man merely a mistake of God's? Or God merely a mistake of man?

Marriage was contrived for ordinary people, for people who are capable of neither great love nor great friendship, which is to say, for most people--but also for those exceptionally rare ones who are capable of love as well as of friendship.

The empty, the one, the unmoved, the full, satiation, wanting nothing--that would be my evil: in short, dreamless sleep.

Free will without fate is no more conceivable than spirit without matter, good without evil.