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Home » 10 Influential Philosophers and Why You Should Know What They Said: Dr. Peter Kreeft (Transcript)

10 Influential Philosophers and Why You Should Know What They Said: Dr. Peter Kreeft (Transcript)

Read here the full transcript of Peter Kreeft’s lecture titled “10 Influential Philosophers and Why You Should Know What They Said.”

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TRANSCRIPT:

DR. PETER KREEFT: All right, well I thank you for this opportunity and I thank you for giving me my topic. It’s a very broad one, at least limited to 10. The last time I was asked to talk about my 10 favorite books I got up to 30 and then I noticed that I had used up all the time, so I’ll confine myself to the 10 greatest books of philosophy. I don’t want to use a scholarly standard.

If I were writing a history of philosophy and I can only include 10 philosophers and they were supposed to be the most influential, I would include some of the ones I’m going to talk about tonight, but I will also not be able to omit certain very influential philosophers that I would not talk about tonight because I don’t think they are as wise as the ones I’m going to talk about. For instance, Descartes, Hume, Kant, Hegel, Freud. I’m going to talk about Plato, Aristotle, Augustine, Boethius, Thomas Aquinas, Pascal, G.K. Chesterton, Dostoevsky, Tolkien, and C.S. Lewis.

The last three or perhaps the last four are not usually classified as philosophers, but if philosophy is, as its inventors said it was, the love of wisdom, then that must be our standard. What delivers the most wisdom? Well, to me, these 10 thinkers and these 10 books have delivered more wisdom than any other.

Plato and The Republic

We begin with Plato. Philosophy begins with Plato. It’s amazing that Plato, who is the first philosopher whose complete books we have. We have nothing by Socrates. Like Jesus, Socrates wrote nothing. And the pre-Socratic philosophers we just have fragments of. Plato, the very first philosopher from whom we have somewhere between 26 and 30 complete dialogues, is the greatest writer in the history of philosophy. Nobody has ever written philosophy in as charming and as powerful and as effective way as Plato.

I have tried teaching philosophy to freshmen in many ways, all possible ways, and some impossible ways, and I’ve found none that can even come close to the effectiveness of introducing them to Socrates through Plato’s dialogues. That’s not to say that I classify myself as a Platonist or a disciple of Plato or confine myself to Plato’s answers, but Plato’s strategy of doing philosophy in dialogue and Plato’s brilliant psychological understanding of human character, a dimension that philosophers often get because they’re absent-minded and impersonal. And above all, the figure of Socrates, an example of philosophy, very, very impressive.

And of all Plato’s works, by far the most important and influential is the Republic. That book is certainly the most famous and influential philosophy book ever written. Even though most of it is about politics and almost nobody agrees with Plato’s politics, it’s a kind of a benevolent dictatorship, a rather rigid class system based on a rather rigid ideological framework. Nevertheless, Plato’s charm in raising the question, whoever you answer them, is, I think, unparalleled.

There was a philosopher, I think his name was Sidney Hook. He’s a New Yorker and he was an atheist, and in his autobiography, he wrote about how he became a philosopher. He was a non-conformist in high school. He skipped most of his classes, but he was very smart. He spent most of his time in the 42nd Street Library in New York City, reading whatever book he randomly picked. And one day someone said to him, “You gotta read Plato’s Republic.” And he said he read Plato’s Republic and he was hooked.

When he got to the most famous image in the entire history of philosophy, namely the cave, the cave of the intellectual equivalent of original sin that Plato says we’re all born into, we’re all born stupid. The need to get out of that cave and to obtain enlightenment, the reality and not just appearances, he said, so captivated me that it was my conversion. He said, “If that’s philosophy, I’m going to be a philosopher.” He did. And I’ve talked to students whose contact with Plato, and especially Republic, and maybe especially that image of the cave, has had a somewhat similar effect.

Plato is the great philosopher of supernaturalism. We mean by nature, everything that we can touch with our senses, we’re talking about something very big, like the entire universe. But then there are things that we can’t touch with our senses. And they always at least have objects that seem to be supernatural. The mind, for instance, it seeks truth, it seeks certainty, it seeks truths like being is not non-being, and three plus seven are ten, and justice is a virtue. Those things have no color, no shape. Physics can say almost nothing about them. They’re natural rather than supernatural to us because they’re part of human reason. And yet they reach out to and try to understand something that is not part of nature.

Truth. Truth itself. Truth is a capital T. Each of Plato’s dialogues centers on one of these truths which Plato called forms, or consensus, or Platonic ideas. They’re not subjective opinions, they’re objective truths. And Republic is one of the most important because its idea, its subject, is di chaosune, usually translated justice. The word is used in the New Testament, often translated by righteousness, fundamental moral virtue. Justice means each person and each power in a person doing the thing that it’s supposed to do and designed to do.

Justice is the virtue that regulates all the other virtues. Wisdom or prudence for the mind, and courage for the will, and self-control for the passions, all of that is justice. And the fundamental point that Plato wants to prove about justice in the Republic, to prove now, not just to suggest, prove beyond the shadow of a doubt, is that justice is always more profitable than injustice.