He who will observe simplicity in all his habits, restricting the appetite and controlling the passions, may preserve his mental powers strong, active, and vigorous, quick to perceive everything which demands thought or action, keen to discriminate between the holy and the unholy, and ready to engage in every enterprise for the glory of God and the benefit of humanity.—The Signs of the Times, September 29, 1881. (Sons and Daughters of God, 86.)