Friday, June 04, 2004
Plato, Theaetetus 153b
(tr. F.M. Cornford):
SOCRATES: Again, the healthy condition of the body is undermined by inactivity and indolence, and to a great extent preserved by exercise and motion, isn't it?
SOCRATES: And so with the condition of the soul. The soul acquires knowledge and is kept going and improved by learning and practice, which are of the nature of movements. By inactivity, dullness, and neglect of exercise, it learns nothing and forgets what it has learned.