This war is as ancient as the world; the Greeks figured it under the symbols of Eros and Anteros, and the Hebrews by the antagonism of Cain and Abel. It is the war of the Titans and the Gods. The two armies are everywhere invisible, disciplined and always ready for attack or counterattack. Simple-minded folk on both sides, astonished at the instant and unanimous resistance that they meet, begin to believe in vast plots cleverly organized, in hidden, all-powerful societies. Eugène Sue invents Rodin; churchmen talk of the Illuminati and of the Freemasons; Wronski dreams of his bands of mystics, and there is nothing true and serious beneath all that but the necessary struggle of order and disorder, of the instincts and of thought; the result of that struggle is balance in progress, and the devil always contributes, despite himself, to the glory of St. Michael.
Éliphas Lévi, trans Aleister Crowley, Liber XLVI The Key of the Mysteries