I say that many of these heresies, independently of the doctrines they assert, encounter success among the simple because they suggest to such people the possibility of a different life. I say that very often the simple do not know much about doctrine. I say that often hordes of simple people have confused Catharist preaching with that of the Patarines, and these together with that of the Spirituals. The life of the simple, Abo, is not illuminated by learning and by the lively sense of distinctions that makes us wise. And it is haunted by illness and poverty, tongue-tied by ignorance. Joining a heretical group, for many of them, is often only another way of shouting their own despair. You may burn a cardinal’s house because you want to perfect the life of the clergy, but also because you believe that the hell he preaches does not exist.
Umberto Eco, The Name of the Rose
christianity, heresy