Master-morality and Slave-morality.

Convictions are prisons.

He turns all of his injuries into strengths, that which does not kill him makes him stronger, he is superman.

What destroys a man more quickly than to work, think and feel without inner necessity, without any deep personal desire, without pleasure - as a mere automaton of duty?

When we have to change our mind about a person, we hold the inconvenience he causes us very much against him.

There is a great ladder of religious cruelty, and, of its many rungs, three are the most important. People used to make human sacrifices to their god, perhaps even sacrificing those they loved the best ... Then, during the moral epoch of humanity, people sacrificed the strongest instincts they had, their 'nature,' to their god... Finally: what was left to be sacrificed? ... Didn't people have to sacrifice God himself and worship rocks, stupidity, gravity, fate, or nothingness out of sheer cruelty to themselves?

He divines remedies against injuries; he knows how to turn serious accidents to his own advantage; whatever does not kill him makes him stronger