“A man consists of body and soul. Thus often, especially in his youth, he is interested only in his body, but nevertheless, the most essential part of every man is not his body, but his soul. It is your soul that you must take care of, not your body. You must learn this over time, and remember that your real life is in your spirit, that is, in your soul. Save it from everyday dirt and do not let your flesh guide it; subdue your body to your soul, and then you will fulfill your destiny and live a happy life.”

Marcus Aurelius, via A Calendar of Wisdom (Page 44)