"In some remote corner of the universe, poured out and glittering among innumerable solar systems, there once was a star on which clever animals invented knowledge."
"Two great European narcotics, alcohol and Christianity."
"Sometimes people don't want to hear the truth because they don't want their illusions destroyed."
"It is not a lack of love, but a lack of friendship that makes unhappy marriages."
"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."
"He who has a why to live for can bear almost any how."