" I leave it to the faithful to burn each other’s churches and mosques and synagogues, which they can always be relied upon to do. When I go to the mosque, I take off my shoes. When I go to the synagogue, I cover my head. I once even observed the etiquette of an ashram in India, though this was a trial to me. "

― Christopher Hitchens , God Is Not Great: How Religion Poisons Everything