food, drink, digestion, rest and sleep; and there are parts of the world where it can be said that these are characteristic and national pleasures. Secondly, there are the pleasures of muscular energy, such as walking, running, wrestling, dancing, fencing, riding and similar athletic pursuits, which sometimes take the form of sport, and sometimes of a military life and real warfare. Thirdly, there are the pleasures of sensibility, such as observation, thought, feeling, or a taste for poetry or culture, music, learning, reading, meditation, invention, philosophy and the like.