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: Kirk Lee Hammett is the lead guitarist in the band Metallica. Hammett is one of the better-known students of guitar virtuoso and instructor Joe Satriani.
