This video lecture discusses Friedrich Nietzsche's Genealogy of Morals, focusing on Nietzsche's critique of conventional morality. Kaplan explains Nietzsche's concept of a "slave revolt" as a metaphorical origin story for modern morality, contrasting it with an earlier, aristocratic moral code. The lecture analyzes Nietzsche's criticisms of modern morality and explores the distinctions between "good and bad" versus "good and evil."