"Cultures spring from religions; ultimately the vital force which maintains any culture is its philosophy, its attitude toward the universe; the decay of a religion involves the decay of the culture corresponding to it—we see that most clearly in the breakdown of Christendom today. The bad work begun at the Reformation is bearing its final fruit in the dissolution of our ancestral doctrines—the very structure of our society is dissolving."
~H. Belloc: The Great Heresies, Ch. III.—The Great and Enduring Heresy of Mohammed.