"Journeys to India and indebtedness to Brahminical wisdom are now ascribed to numerous founders and leaders in Greek thought, such as Plato, Democritus, Pherecydes of Cyrus and, quite often, Pythagoras. We hear that Pythagoras studied astronomy andastrology with the Chaldeans, and psychological as well as soteriological doctrines with the Indian gymnosophists."