Plato's Fish-Trap: Ancient Philosophy and Science
Doug CampbellThis is a Substack dedicated to ancient philosophy and science. New posts every Friday.
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platosfishtrap.substack.comLatest Issues
38. Plato's Theory of the Divided Soul
On July 19, 2026, I gave a free lecture on Substack. It was entitled “The divided soul: Plato’s theory that the soul has parts.” This podcast episode is an audio recording of the lecture. I apologize for the worse-than-usual audio quality a...
The divided soul: Plato’s theory that the soul has parts (lecture)
On July 19, 2026, I gave a free lecture here on Substack. It was entitled “The divided soul: Plato’s theory that the soul has parts.” The lecture has these parts:
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A general discussion of the soul in ancient Greek philosophy.
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The...
37. Heraclitus and the Unity of Opposites
In this episode, I discuss Heraclitus' doctrine that scholars call "the unity of opposites."
I am an Assistant Professor in the Department of Philosophy at Alma College.
You can subscribe to The Ancient Philosophy Podcast on all major pod...
Aristotle: what does it mean to be a citizen?
Very early in the Politics, Aristotle said: “humans are, by nature, political animals.” This claim recurs throughout the Politics because it frames Aristotle’s entire political philosophy. Unlike later philosophers in modern philosophy, suc...
36. Why Democritus Believed in the Void
In this episode, I discuss what Democritus thought the void was and why he thought that it existed.
I am an Assistant Professor in the Department of Philosophy at Alma College.
You can subscribe to The Ancient Philosophy Podcast on all ma...
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Authors
The writers behind this newsletter.
Assistant Professor in the Department of Philosophy at Alma College. Author of An Introduction to the Ethics of Social Media. Host of the Ancient Philosophy Podcast.
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