Plato was not an innovator.
 According to Diogenes Lartius, throughout his later life, Plato became entangled with the politics of the city of Syracuse, where attempted to replace the tyrant Dionysius, with Dionysius's brother-in-law, Dion of Syracuse, who Plato had recruited as one of his followers, but the tyrant himself turned against Plato
 According to  Diogenes Lartius, Plato received these ideas through Heraclitus' disciple Cratylus

