A strong body makes the mind strong. As to the species of exercise, I advise the gun. While the gun gives moderate exercise to the body, it gives boldness, enterprise and independence to the mind. Games played with the ball, and others of that nature, are to violent for the body and stamp no character on the mind. Let your gun, therefore, be the constant companion of your walks.
--- Thomas Jefferson
Source: Nugent, Ted, God, Guns & Rock'N'Roll