Metempsychosis is a term from the Greeks that refers to reincarnation of the soul. It is variously referred to as "transmigration" or "palingensia". The belief in reincarnation is carried associated with religons such as Buddhism and Hinduism where after death the soul may be reborn in another form. The Greek mathematician, Pythagoras, was said to be a believer in metempyschosis and influenced his contempories in the Orphic way of life. One of which, the philosopher Plato, believed that there is no new knowledge, just the remembering of old knowledge.