“One cannot refute Christianity; one cannot refute a disease of the eye.”

“It is certainly not the least charm of a theory that it is refutable; it is precisely thereby that it attracts the more subtle minds. It seems that the hundred-times-refuted theory of the "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it.”

“I change too quickly: my today refutes my yesterday. When I ascend I often jump over steps, and no step forgives me that.”

“One must reach out and try to grasp this astonishing finesse, that the value of life cannot be estimated.”

“He who would learn to fly one day must first learn to walk and run and climb and dance; one cannot fly into flying. ”

“The earth has a skin and that skin has diseases; one of its diseases is called man.”

“If the Christian dogmas of a revengeful God, universal sinfulness, election by divine grace and the danger of eternal damnation were true, it would be a sign of weak-mindedness and lack of character not to become a priest, apostle or hermit and, in fear and trembling, to work solely on one's own salvation; it would be senseless to lose sight of ones eternal advantage for the sake of temporal comfort. If we may assume that these things are at any rate believed true, then the everyday Christian cuts a miserable figure; he is a man who really cannot count to three, and who precisely on account of his spiritual imbecility does not deserve to be punished so harshly as Christianity promises to punish him.from Nietzsche's Human, all too Human”