According to Plato is there such a thing as 'natural justice'? How does he portray it? How does he argue against Callicles' position that 'justice is the right of the stronger'/ 'might makes right'? Has Plato proved his position against Callicles? Why/ why not? From: 'The Melian Conference' Book V, Chapter 17: The Athenian Destruction of Melos, and Plato, Gorgias, 483-500