But they think it madness for a man to wear out the beauty of his face or the force of his natural strength, to corrupt the sprightliness of his body by sloth and laziness, or to waste it by fasting; that it is madness to weaken the strength of his constitution and reject the other delights of life, unless by renouncing his own satisfaction he can either serve the public or promote the happiness of others, for which he expects a greater recompense from God.