Host David Musgrove interviews medieval historian Peter Jones to reframe the seven deadly sins as a practical tool for self-knowledge rather than mere religious prohibitions. They trace the concept from Evagrius Ponticus’s eight generic thoughts to Gregory the Great’s finalized list, highlighting how mandatory confession in 1215 popularized the framework. The episode explores how medieval thinkers used these categories to map human psychology and improve well-being, offering lessons for modern life.