Rachel Barney: Ancient Philosophy and the Sophists | Robinson's Podcast #79
Rachel Barney is Professor of Classics and Professor of Philosophy at the University of Toronto. She received her PhD at Princeton and has taught at the University of Ottawa, Harvard, and the University of Chicago. She has worked widely across ancient philosophy, from the sophists to the Neoplatonists, though her primary focus is on Plato. In this episode, Robinson and Rachel discuss the sophists, beginning with just who they were and why they have been so maligned in contemporary discourse—even the word sophist today has pejorative connotations—and continuing through some of their most important thinkers, like Gorgias and Protagoras. Check out Rachel’s last book, Plato and the Divided Self (Cambridge University Press, 2012). OUTLINE: 00:00 In This Episode... 00:34 Introduction 04:28 Rachel’s Interest in Ancient Philosophy 09:49 Misunderstanding the Sophists 20:04 What Displaced the Sophists’ Philosophical Practices? 26:17 Philosophy and Protophilosophy 29:39 The Main Sophists 33:43 Gorgias and Non-Being 53:37 On Protagoras 1:07:40 Religion and the Sophists 1:12:55 More on Protagoras 1:17:50 Virtue in Homer and Hesiod 1:28:05 Ancient Philosophy and How to Live Robinson’s Website: http://robinsonerhardt.com Robinson Erhardt researches symbolic logic and the foundations of mathematics at Stanford University. Join him in conversations with philosophers, scientists, weightlifters, artists, and everyone in-between.

Politics Chat, June 18, 2026

Strongmen, Oligarchs, & Fascists with Ruth Ben-Ghiat

The Red Book: The Divine Madness of Dr. Carl Jung

Matt Damon Surprise Attacks Kimmel AGAIN & Trump’s Dummy of a Deal with Iran Faces Backlash

Merleau-Ponty, The Phenomenology of Perception

A Conversation with Bertrand Russell (1952)

Nuclear Historian Reacts to Movies | Science vs Fiction

Today in Politics | Explainer

Plato's REPUBLIC – Full Summary and Explanation of Western Philosophy's Most Important Book

Frank Dikötter and the True History of Communist China

Boston Public Radio, The Curiosity Desk, & The Culture Show Live Thursday, June 17, 2026

The problem with pretending quantum mechanics makes sense | Sean Carroll

AI Is Creating A Rare Opportunity For Investors. How Jim Roppel Is Playing It. | Investing With IBD

Clara Mattei: capitalism is not natural - it’s enforced

Remembering Christopher Hitchens | Richard Dawkins, Stephen Fry, Douglas Murray, & Lawrence Krauss

Denis Noble: "Neo-Darwinism Is Dead" | We Need A Biology Beyond Genes

How to increase your vocabulary: Live English Class

Lunch Money with Paul Krugman and Heather Cox Richardson

Open Space 47: Quantum Mechanics With Caltech's Sean Carroll

