Thus I spoke, more and more softly; for I was afraid of my own thoughts and the thoughts behind my thoughts.

Those who cannot understand how to put their thoughts on ice should not enter into the heat of debate.

Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.

Whoever wants to set a good example must add a grain of foolishness to his virtue: then others can imitate and yet at the same time surpass the one they imitate-which human beings love to do.

There will be but few people who, when at a loss for topics of conversation, will not reveal the more secret affairs of their friends.

Whoever deliberately attempts to insure confidentiality with another person is usually in doubt as to whether he inspires that person's confidence in him. One who is sure that he inspires confidence attaches little importance to confidentiality.

God is dead, God remains dead, and we have killed him.