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: Mark Twight rose to prominence in the world Alpine mountaineering community in the late 1980s and early 1990s with a well-documented series of difficult, dangerous alpine climbs in various ranges around the world.