“Gorgias, who was the perfect example of a 20th century skeptic transplanted into ancient Greece […] maintained three basic propositions: one, nothing exists; two, if anything existed, you couldn’t know it; three, if you could know it, you couldn’t communicate it. Now that is what you call skepticism.”
— Leonard Peikoff, “History of Philosophy” course, ARI, Lesson 7.
(I don’t like modern art. But if we look hard, there might be something to learn from it. The steel sculpture “Protagoras”, by Charles Ginnever, could well be considered the concretization of a philosophic idea. The sculpture changes shape as viewers move around it, the play of light and shadow on its triangular forms giving life to the massive structure. “The senses deceive” I’d say is the message. But, now, try to imagine someone jumping from this malformed idea (because it’s not the senses that are wrong, but the concepts we generate from them) to the conclusion that nothing exists. Perhaps some of the federal judges working at the Burger building, in St. Paul, Minnesota, where “Protagoras” is installed, would like it to vanish. But to assert it never existed would be a bit farfetched. Nevertheless, that’s exactly what sophists like Protagoras and Gorgias did.)
The sophists have been branded throughout history as greedy and imoral teachers, but that’s polemics for a history course, or one on Plato and his obsession with them. Leonard Peikoff focuses instead on the ideas they put forth — even if their main idea is the negation of all ideas.
“To use a ridiculously simplified metaphor: It’s as though both writers are painting a portrait of a woman sitting at a table. But while the novelist is painting from imagination and can give the woman any features, any race, any age, any dress, the historian is looking at an actual young, white woman sitting at a sidewalk table outside a St. Louis eatery…”
— Susan Wise Bauer, “The Well-Educated Mind”, page 164.
(Self-portrait of Aert de Gelder painting an ugly old woman, 1685. Just like this painter, the historian cannot paint history the way he pleases.)
History itself appeared with the ancient Greeks Herodotus, Thucydides, and Xenophon, but it was little more than a collection of disconnected stories focused on large individuals. History was not a journey toward an end or had any underlying plan. The universe had always existed, after all.