““Divorce a man from purpose and his life becomes meaningless, no better than an animal’s. The trouble is that most purposes are exhausted too quickly; the only ones capable of enduring are those sustained by belief. The medieval church knew that stout walls were needed to block out the horrifying vacuum of the universe. It understood that the recognition of that vacuum was enough to send weak human beings, cursed with imagination, to insanity and suicide. That was why the church demanded absolute obedience.””