Deism is good sense not yet instructed by revelation, and other religions are good sense perverted by superstition. All sects differ, because they come from men; morality is everywhere the same, because it comes from God.
Voltaire [François Marie Arouet] (1694–1778), French Enlightenment thinker. Philosophical Dictionary, "Atheism and Deism," 18th Century Philosophy, p. 190, ed. Lewis W. Beck, Free Press, New York (1966).