Sometimes it is harder to accede to a thing than it is to see its truth.

You highest men whom I have ever seen! This is my suspicion about you and my secret laughter: I guess that you would call my superman--a devil!

Our knowledge will take its revenge on us, just as ignorance exacted its revenge during the Middle Ages.

Morality is the herd-instinct in the individual.

Whatever does not kill me makes me stronger.

Everyone nowadays lives through too much and thinks through too little: they have a ravenous appetite and colic at the same time so that they keep getting thinner and thinner no matter how much they eat.--Whoever says nowadays, "I have not experienced anything"--is a simpleton.

There is no pre-established harmony between the furtherance of truth and the well-being of mankind.