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: Izaak Walton was an English writer. Best known as the author of The Compleat Angler, he also wrote a number of short biographies that have been collected under the title of Walton's Lives.