 Nothing is known of his life after the time of Aristotle's departure, apart from a comment in "Elementa Harmonica" concerning his works.His writings, said to have consisted of four hundred and fifty-three books, and dealt with philosophy, ethics and music.Although his final years were in the Peripatetic School, and he hoped to succeed Aristotle on his death, Aristonexus was strongly influenced by Pythagoreanism, and was only a follower of Aristotle in so far as Aristotle was a follower of Plato and Pythagoras.