If the Christian religion, as I understand it, or as you understand it, should maintain its ground, as I believe it will, yet Platonic, Pythagoric, Hindoo, and cabalistic Christianity, which is Catholic Christianity, and which has prevailed for 1,500 years, has received a mortal wound, of which the monster must finally die. Yet so strong is his constitution, that he may endure for centuries before he expires.

John Adams, letter to Thomas Jefferson (July 16, 1814). From the Works of John Adams, Vol. X, p. 100