When men become enslaved by their religious symbols to the extent that they are willing to murder other men for them, or even to imprison them, when this slavery blinds their better sight and renders them fanatically intolerant of all other views, Nature deems it time to liberate both--the first from their sin, the others from their suffering. When ecclesiastics become intolerant and forget the first virtue of all religion--which is goodwill towards other men--and when they begin to persecute good men who are unable to agree with them, they not only put others in danger but also themselves. Jesus is one authority for this statement, for he warned all mankind that they would reap the circumstances sown by their conduct. Another authority is the ever-open bloodstained book of history. A good deal of true Christianity burnt itself out in the medieval fires which its more ardent advocates lit for each other and for those unfortunate infidels who knew nothing more of Christ than his name.
-- Notebooks Category 17: The Religious Urge > Chapter 5 : Comments On Specific Religions > # 58