Stephen R. Covey said this quote

I believe that days one and two for most of us involve getting more control over the body-such as getting to be early, arising early, exercising regularly, eating in moderation, staying at our work when necessary even when tired. Too many are trying to conquer higher weaknesses such as procrastination, impatience or pride while still being slaves to their appetites. If we can’t control the body and its appetites, how can we control our tongues, or overcome the emotions or anger, envy, jealousy, or hatred?