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Welcome back, Alan. You've now completed all of Topic 1 — a thorough journey through the Pre-Socratics, from Thales through the Atomists. This lesson picks up exactly where that left off, moving into Topic 2: Socrates and the Sophists.
After nine lessons' worth of cosmology and metaphysics, this lesson marks the famous pivot — where philosophy turns from the heavens to the human being. Here's what this lesson covers:
- 2.1 The Sophists — who they were and why relativism genuinely threatened philosophy
- 2.2 Socrates vs. the Sophists — what it means to know that you don't know
- 2.3 The Socratic Method — how elenchus works, with a deep dive into the Euthyphro
By the end, you'll have a firm grip on what Socrates was actually doing — and why it was controversial enough to get him killed.
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Part 1 is ready. The Sophists are presented in full — Protagoras's relativism, the epistemic threat it poses to the entire Pre-Socratic project, and Gorgias's three devastating propositions. The piece also gives the Sophists their due as genuine philosophical figures rather than mere foils for Socrates.
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Course Syllabus: History of Western Philosophy
Topic 0: Course Introduction
An orientation to the journey ahead — what philosophy is, why its history matters, and how the topics in this course build on one another across twenty-five centuries.
Topic 1: The Pre-Socratics
Philosophy begins not with answers but with a radical change in the kind of question being asked — replacing mythological explanation with reasoned inquiry into the nature of reality.
Topic 2: Socrates and the Sophists
The focus of philosophy shifts from the cosmos to the human being — from "what is the world made of?" to "how should I live?"
Topic 3: Plato
Plato is the first systematic philosopher and the pivot around which all of Western philosophy rotates.
Topic 4: Aristotle
Aristotle is philosophy's great synthesizer and systematizer — he simultaneously dismantles Plato's world of separate Forms and rebuilds a richer account of substance, nature, knowledge, and the good life.
Topic 5: Hellenistic Philosophy
After Alexander the Great, three great schools emerge to answer the question pressing on every individual: how do I live well in a world I cannot control?
Topic 6: Medieval Philosophy
Medieval philosophy is where some of philosophy's sharpest problems (universals, existence, necessary being, reason vs. revelation) were fought over with great precision.
Topic 7: Renaissance and Early Modern Philosophy
The Renaissance dissolves the medieval synthesis, and a new science of nature forces a complete rethinking of what knowledge is and how to get it.
Topic 8: The British Empiricists
Where the rationalists grounded knowledge in innate ideas and pure reason, the empiricists insist that all knowledge comes from experience.
Topic 9: Kant
Kant is the hinge of modern philosophy — woken by Hume's skepticism, he attempts a complete restructuring of epistemology.
Topic 10: German Idealism and Hegel
Kant's successors eliminate the mysterious "thing-in-itself" by making reality fully rational and fully knowable — leading to Hegel and his dialectical account of history, Spirit, and freedom.
Topic 11: 19th-Century Responses
Hegel's grand system provoked four of the nineteenth century's most important philosophers into furious, contrasting responses.
Topic 12: Analytic Philosophy
At the turn of the twentieth century, a new style of philosophy emerges that turns away from grand metaphysical systems toward the logical analysis of language and thought.
Topic 13: Continental Philosophy
A parallel tradition turns to lived experience, embodiment, and the question of being itself — Husserl, Heidegger, Sartre, de Beauvoir, Merleau-Ponty, and Levinas.
Topic 14: Later Analytic Philosophy
The late Wittgenstein's rejection of his own early theory transforms analytic philosophy — while Quine, Rawls, and philosophy of mind take it in new directions.
Topic 15: Postmodernism and Contemporary Thought
Foucault, Derrida, Lyotard, and Rorty each question the very foundations of the Western philosophical project — universal reason, objective truth, and grand historical narratives.
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