Everyone confesses in the abstract that exertion which brings out all the powers of body and mind is the best thing for us all; but practically most people do all they can to get rid of it, and as a general rule nobody does much more than circumstances drive them to do.
Bio: Marla Lee Runyan is an American track and field athlete, road runner and marathon runner who is legally blind. She is a three-time national champion in the women's 5000 metres.
