Almost all the greatest and best Greeks of this time believed in part in the philosophy of Pythagoras, who had lived in the former century, and taught that the whole universe was one great divine musical instrument, as it were, in which stars, sun, winds, and earth did their part, and that man ought to join himself into the same sweet harmony.  He thought that if a man did ill his spirit went into some animal, and had a fresh trial to purify it, but it does not seem as if many others believed this notion.