It seems to me that had I not known Dostoevsky or Nietzsche or Freud or X or Z, I should have thought just as I did, and that I found in them rather an authorization than an awakening. Above all, they taught me to cease doubting, to cease fearing my thoughts, and to let those thoughts lead me to those lands that were not uninhabitable because after all I found them already there.
Characters, p. 306 - Pretexts: Reflections on Literature and Morality (1964)