The superstitious man is to the knave, what the slave is to the tyrant; nay more — the superstitious man is governed by the fanatic, and becomes a fanatic himself.

Voltaire (1694-1778) French writer [pseud. of Francois-Marie Arouet]

“Superstition,” Philosophical Dictionary (1764) [tr. Fleming (1901)]
    (Source)

Alt. trans.: "The superstitious man is to the rascal what the slave is to the tyrant." [tr. Besterman (1971)]