We must then exercise ourselves in taking care about those things which fall under the power of the passions, fleeing like those who are truly philosophers such articles of food as excite lust, and dissolute licentiousness in chambering and luxury; and the sensations that tend to luxury, which are a solid reward to others, must no longer be so to us. For God’s greatest gift is self-restraint. For He Himself has said, “I will neyer leave thee, nor forsake thee,” as having judged thee worthy according to the true election. Thus, then, while we attempt piously to advance, we shall have put on us the mild yoke of the Lord from faith to faith, one charioteer driving each of us onward to salvation, that the meet fruit of beatitude may be won. “Exercise is” according to Hippocrates of Cos, “not only the health of the body, but of the soul—fearlessness of labours—a ravenous appetite for food.”