The document discusses the origins and definitions of rhetoric. It begins by defining rhetoric as the art of persuasive speaking or writing, using figures of speech and compositional techniques. It then discusses how Plato and Aristotle had different views on rhetoric, with Plato believing reason and wisdom should rule and Aristotle focusing on expression and enjoying art. The document also examines their differing views on mimesis, catharsis, and poetry. Finally, it outlines the three modes of persuasion in rhetoric - ethos, logos, and pathos.