Fanaticism is a fire, which heats the mind indeed, but heats without purifying. It stimulates and ferments all the passions; but it rectifies none of them.
William Warburton, William Warburton (Bp. of Gloucester), Richard Hurd (1811). “The Works of the Right Reverend William Warburton, D.D., Lord Bishop of Gloucester: To which is Prefixed a Discourse by Way of General Preface, Containing Some Account of the Life, Writings, and Character of the Author”, p.135
