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3. The Sophists and the Turn to the Human

Heptabase AI Tutor· 03/28/2026 1:01 AM

Course syllabus

Course Syllabus

0.1

Roadmap introduction

what you'll learn, why it matters, and how the topics connect across 600 years of Greek thought

Topic 1: What Is Philosophy?

1.1

Philosophy vs. Myth and Religion

how rational argument replaced (and sometimes clashed with) traditional Greek storytelling about the cosmos

1.2

The Core Branches of Philosophy

a beginner's map of metaphysics, epistemology, ethics, logic, and political philosophy — the territories this course will cover

1.3

Why the Greeks? Why Now?

the historical and cultural conditions that produced philosophical inquiry, and why these questions still press on us today

1.4

How to Read Philosophy

approaching arguments charitably, identifying premises and conclusions, and engaging with primary texts as live conversations

Topic 2: The Pre-Socratics: Cosmos and First Principles

2.1

The Milesians: Water, the Boundless, and Air

Thales, Anaximander, and Anaximenes — the first attempt to explain all of nature from a single underlying substance

2.2

Heraclitus: Flux and the Logos

Everything is in constant change, yet an underlying rational structure (Logos) unifies all opposites and governs the cosmos

2.3

Parmenides: Being and the Way of Truth

The radical argument that change and plurality are logical illusions — only eternal, unchanging Being truly exists

2.4

The Pluralists: Empedocles and Anaxagoras

Responses to Parmenides: four roots and Love/Strife; Mind (Nous) as the original mover of the cosmos

2.5

The Atomists: Democritus and the Void

The first materialist metaphysics — atoms and void as the ultimate constituents of reality, and the implications for soul, perception, and ethics

Topic 3: The Sophists and the Turn to the Human

3.1

Who Were the Sophists?

professional teachers of persuasion and virtue in democratic Athens — their social role and reputation

3.2

Protagoras and Moral Relativism

'Man is the measure of all things': the claim that truth and morality are relative to the individual or community, and why this was electrifying and dangerous

3.3

Gorgias and the Power of Rhetoric

the argument that nothing exists, or if it does we can't know it, or if we can we can't communicate it — rhetoric as power without truth

3.4

The Nomos vs. Physis Debate

is morality a human convention (nomos) or grounded in nature (physis)? — a debate Plato will spend his career resolving

Topic 4: Socrates: Method and Mission

4.1

The Elenchus: Socratic Questioning and Aporia

Seeking definitions and exposing contradictions.

4.2

The Apology: Philosophy on Trial

Socrates' defense speech and his identity as the 'gadfly'.

4.3

Socratic Ethics: Virtue as Knowledge

The radical claim that no one does evil willingly.

4.4

The Unexamined Life and the Care of the Soul

Wisdom through self-examination.

Topic 5: Plato: The World of Forms

5.1

The Allegory of the Cave and the Two Worlds

Plato's most famous metaphor for reality and education.

5.2

The Theory of Forms: Beauty, Justice, and the Good

Understanding the perfect archetypes of beauty, justice, and truth.

5.3

Epistemology: Recollection and the Divided Line

The levels of knowing and the idea that learning is remembering.

Topic 6: Plato: The Soul and the Just Society

6.1

The Tripartite Soul and Psychic Harmony

Reason, Spirit, and Appetite — and their proper order.

6.2

Justice in the City-State: One Person, One Function

The structure of the ideal state and the rule of philosophers.

6.3

Eros and the Ascent to Beauty (Symposium)

Love as the ladder leading the soul to the divine.

Topic 7: Aristotle: The Science of Being

7.1

Categories and Logic: The Syllogism

The invention of formal logic and classification of reality.

7.2

Hylomorphism: Matter and Form in Substance

Every physical object as a composite of matter and form.

7.3

The Four Causes and Teleology in Nature

The material, formal, efficient, and final explanations of things.

Topic 8: Aristotle: Eudaimonia and the Human Good

8.1

Eudaimonia: The Function of Human Life

Flourishing as the unique function of the human being.

8.2

The Doctrine of the Mean and Moral Habituation

Virtue as the 'golden mean' between two extremes.

8.3

Friendship and the Zôion Politikon (Political Animal)

Why the 'political animal' needs friendship and community.

Topic 9: Hellenistic Ethics: Epicureans and Stoics

9.1

Epicureanism: Atoms, Pleasure, and the Fear of Death

Atomism, the pursuit of simple pleasures, and 'death is nothing'.

9.2

Stoicism: Virtue as the Only Good

Aligning one's will with the rational order of the cosmos.

9.3

The Dichotomy of Control and Living with Nature

Managing emotions and focusing on what is in our control.

Topic 10: The Critical Voices: Skeptics and Cynics

10.1

Pyrrhonian Skepticism: Suspending Judgment for Peace

Achieving peace by admitting we cannot know.

10.2

Academic Skepticism: The Search for Probability

Probability as a guide for living in an uncertain world.

10.3

The Cynics: Radical Simplicity and Nature

Diogenes and the systematic rejection of social conventions.

Topic 11: The Ancient Legacy and Synthesis

11.1

Comparing the Schools on the Good Life

Comparing Plato, Aristotle, Stoics, and Epicureans on happiness.

11.2

Metaphysics Synthesis: One vs. Many, Matter vs. Spirit

A final look at the major ancient answers to 'What is real?'.

11.3

Ancient Philosophy's Modern Relevance and Legacy

From Roman Stoicism to modern therapy and science.

Final Capstone: Philosophy as a Way of Life

12.1

Developing Your Personal Philosophical Toolkit

Selecting the most compelling ancient principles for a modern life.

12.2

Ancient Ethics in the Modern World

Applying Socratic, Platonic, or Stoic methods to current moral dilemmas.

12.3

Course Reflection and Final Synthesis

Consolidating the journey from the first 'why' to the final peace.

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