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Plato's "Republic"

Explore Plato’s "Republic" more than 2,000 years after its appearance, and discover why it remains astonishingly relevant in its own right.
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Plato’s Life and Times

01: Plato’s Life and Times

Lecture 1 moves from a brief overview of the course to a discussion of Plato's life and times, and the influences his world would have upon his work.

33 min
Book I—The Title and the Setting

02: Book I—The Title and the Setting

In addition to introducing the characters of Plato's dialogue, this first book also introduces Plato's basic questions about justice and the person and method of Socrates.

30 min
Book I—Socrates versus Thrasymachus

03: Book I—Socrates versus Thrasymachus

The central debate of Book I takes place between Socrates and the Sophist, Thrasymachus. Though much of the latter's relativism is refuted, the questions at the heart of their dispute remain unanswered.

31 min
Book II—The City-Soul Analogy

04: Book II—The City-Soul Analogy

Socrates introduces the city-soul analogy, the individual soul "written large," and we look at the first of the cities that will be constructed as a means of defining justice.

31 min
Books II and III—Censorship

05: Books II and III—Censorship

Socrates argues that since the cultural world plays the central role in forming citizen character, music and literature of all kinds must be censored in a just city.

31 min
Book III—The Noble Lie

06: Book III—The Noble Lie

Socrates's censorship program culminates in the "noble lie," in which the city itself - where the predetermined social classes of birth should not mingle - is the parent.

31 min
Book III—Socrates's Medical Ethics

07: Book III—Socrates's Medical Ethics

Socrates presents a radical view of the practice of medicine and the allocation of medical resources in his just city, and the student is challenged to articulate a response.

31 min
Book IV—Justice in the City and Soul

08: Book IV—Justice in the City and Soul

We see Socrates complete his city-soul analogy - including the "four cardinal virtues " - and then discuss Plato's psychology, especially his notion of the harmony of the soul.

30 min
Book V—Feminism

09: Book V—Feminism

Do Socrates's conditions for justice make him a feminist? We examine his proposals in a contemporary light before moving to another condition: that a just city requires rule by philosophers.

30 min
Book V—Who Is the Philosopher?

10: Book V—Who Is the Philosopher?

A long intellectual detour moves us on our first step towards what is typically called "Plato's theory of Ideas," the cornerstone of his philosophical worldview.

30 min
Book VI—The Ship of State

11: Book VI—The Ship of State

A famous parable reveals one of the most pessimistic interpretations of "real world" politics ever conceived, along with a great irony about the role of philosophers in the real world.

31 min
Book VI—The Idea of the Good

12: Book VI—The Idea of the Good

Socrates finally reveals the answer to the question he has been evading all along: What does the philosopher-ruler actually know?

31 min
Book VI—The Divided Line

13: Book VI—The Divided Line

A single short passage turns out to be the most concise summary of Plato's conception of reality. Although it never becomes crystal clear, discussion does make it accessible.

31 min
Book VII—The Parable of the Cave

14: Book VII—The Parable of the Cave

Perhaps because he realizes the difficulty of understanding both the Idea of the Good and the Divided Line, Socrates tells another parable: that of the cave.

31 min
Book VII—The Education of the Guardians

15: Book VII—The Education of the Guardians

In answering why mathematics is so important to the education of the guardians, we complete our overview of Plato's "theory of Ideas" and his conception of education.

30 min
Book VIII—The Perfectly Just City Fails

16: Book VIII—The Perfectly Just City Fails

As we begin our return to the discussion of actual politics, we learn a surprising irony about Socrates's conception of the perfectly just city: it is doomed to fail.

31 min
Books VIII and IX—The Mistaken Regimes

17: Books VIII and IX—The Mistaken Regimes

The fourth and final part of Plato's Republic, unlike earlier sections, is neither philosophical argument nor historical analysis; it is an explanation of how regimes change.

30 min
Book VIII—Socrates's Critique of Democracy

18: Book VIII—Socrates's Critique of Democracy

This lecture addresses what is perhaps the most politically charged issue found in this course, and addressing Socrates's challenges it should sharpen students' understanding of the regime that they likely think best.

30 min
Books VIII and IX—The Critique of Tyranny

19: Books VIII and IX—The Critique of Tyranny

Socrates offers a lengthy condemnation of tyranny, the worst of all possible regimes. We test his analysis by looking at the most notorious tyrant of our generation: Saddam Hussein.

30 min
Book IX—The Superiority of Justice

20: Book IX—The Superiority of Justice

Socrates argues that the life of the just philosopher is happier and more pleasant than that of the unjust tyrant, returning to a key question posed in Book I.

31 min
Book X—Philosophy versus Poetry

21: Book X—Philosophy versus Poetry

Socrates returns to a subject first raised in Books II and III - this time with a critique even more severe.

31 min
Book X—The Myth of Er

22: Book X—The Myth of Er

Socrates tells a poem of his own, going directly to the issue of how human beings should live their lives and returning the Republic, full circle, to its opening theme.

30 min
Summary and Overview

23: Summary and Overview

In this lecture, we will review the journey we have taken through the ten books of Plato's Republic, trying to summarize the great achievements of this extraordinary book.

30 min
The Legacy of Plato's

24: The Legacy of Plato's "Republic"

Whitehead characterized all of the European philosophical tradition as a "series of footnotes to Plato." We examine this wild exaggeration to see if, indeed, it holds any truth.

31 min

Overview Course No. 4537

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About

David Roochnik

What if you were hurled into a time warp and came face to face with the Ancient Greeks? The Greeks invented trigonometry. They did autopsies and dissections. What could you tell an Ancient Greek that he couldn't say, 'Big deal.'?

INSTITUTION

Boston University

Dr. David Roochnik is Professor of Philosophy at Boston University, where he teaches in both the Department of Philosophy and the Core Curriculum, an undergraduate program in the humanities. He completed his undergraduate work at Trinity College, where he majored in philosophy, and earned his Ph.D. from Pennsylvania State University. Dr. Roochnik was awarded Boston University's Gitner Award in 1997 for excellence in teaching in the College of Arts and Sciences and the 1999 Metcalf Prize for campus-wide teaching excellence. He is the author of two books on Plato, The Tragedy of Reason: Toward a Platonic Conception of Logos and Of Art and Wisdom: Plato's Understanding of TECHNE. He has also published over 30 articles on a wide range of subjects in classical Greek philosophy and literature.

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