A route through the world’s philosophies
88 lessons
14 modules
Guided course
Read the lessons in order, or go straight to a question that interests you. The five parts serve as landmarks; from there, choose a module or open its list of lessons.
88 available lessons · 14 modules · Learn at your own pace
The guided sequence
The course lessons
Part 1
Learning to ask and read
Entering the conversationLearn to tell a question apart from the reasons and evidence offered to answer it.Lessons 1–3 · 3 availableShow lessonsHide lessons
Life, power and mortality in Egypt and MesopotamiaRead an Egyptian teaching and a Mesopotamian epic to ask how people face authority, loss and the limits of a human life.Lessons 4–5 · 2 availableShow lessonsHide lessons
Part 2
Early debates about life and reality
Inquiry and liberation in South AsiaCompare South Asian arguments about what the self is, how we know and whether freedom from suffering or bondage is possible.Lessons 6–12 · 7 availableShow lessonsHide lessons
Lesson 9
How can we tell whether we know?
Lesson 10
Mind, discipline and freedom
Lesson 11
What gives a sacred text authority?
Ways of living and governing in early ChinaCompare early Chinese arguments about how a person becomes good and how people should be governed.Lessons 13–18 · 6 availableShow lessonsHide lessons
Lesson 13
Learning to become humane
Lesson 14
Concern beyond one’s own circle
Lesson 15
How do people become good?
Lesson 16
Action without forcing
Lesson 17
What can a perspective leave out?
Nature, knowledge and the good life in Greece and RomeFollow Greek and Roman arguments as they move from explaining nature to asking about knowledge, justice and how to live well.Lessons 19–26 · 8 availableShow lessonsHide lessons
Lesson 20
An examined life in the city
Lesson 21
Knowledge, appearance and education
Lesson 22
Justice in a person and a city
Lesson 23
What counts as explaining something?
Part 3
Interpreting traditions, questioning authority
Reason, faith and translationSee how translation, religious inquiry and disagreement reshape the philosophical arguments that later thinkers inherit.Lessons 27–33 · 7 availableShow lessonsHide lessons
Lesson 28
Time, will and the inward turn
Lesson 30
What would a necessary being be?
Lesson 32
How can we speak about God?
Lesson 33
Reasoning across faith and nature
Self, understanding and practice across AsiaFollow how Asian thinkers revised inherited arguments about experience, the self, interpretation and the practices of a good life.Lessons 34–40 · 7 availableShow lessonsHide lessons
Community, history and contested authorityAsk how communities explain change, justify authority and judge inherited teachings, attending to the evidence through which we encounter their arguments.Lessons 41–47 · 7 availableShow lessonsHide lessons
Lesson 43
Living well on an unstable earth
Lesson 46
Who is recognized as fully human?
Part 4
Knowledge, freedom and a changing world
Knowledge, nature and political authorityExamine what we can know, what nature consists of and what justifies political power, with attention to institutions and colonial relations.Lessons 48–54 · 7 availableShow lessonsHide lessons
Lesson 48
How far can doubt take us?
Lesson 49
One nature or many substances?
Lesson 51
Habit, causation and the self
Lesson 52
Why should anyone obey a government?
Reason, freedom and social lifeExamine the conditions of experience, the authority of moral rules and the ways social life shapes our choices.Lessons 55–60 · 6 availableShow lessonsHide lessons
Meaning, experience and social criticismExplore ways to clarify meaning, describe experience and question what shapes our thought and action.Lessons 61–68 · 8 availableShow lessonsHide lessons
Selfhood, tradition and powerWho can shape how a person, a tradition or a people is understood? Follow arguments about race, caste, reform, community and land, asking what makes participation meaningful.Lessons 69–76 · 8 availableShow lessonsHide lessons
Lesson 69
A self seen through a racial order
Part 5
Bringing the questions together
Knowledge, justice and experienceDraw on earlier approaches to examine knowledge, justice, art, experience and responsibility.Lessons 77–83 · 7 availableShow lessonsHide lessons
Responsibility in a shared worldThink through shared responsibilities and build a map of arguments you can return to and revise.Lessons 84–88 · 5 availableShow lessonsHide lessons
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Keep exploring
All 88 course lessons are available. Revisit connections through Explore or spend more time with a question in Focused studies. You can enter either at any point in your reading.
Course order connects conversations; it does not imply a single ladder of progress or a history of influence.
Reading support
When a term or source needs a closer look, the module overviews put supporting articles beside the lessons that use them. You can return to your reading whenever you are ready.
Focused studies
Follow a text or question through a study’s own sequence. A completed lesson counts wherever it appears.
1 lesson
A counterexample workshop
Test how far a claim reaches by finding a case in which it fails, and practice on general statements, inferences and fair repairs to an argument.
1 lesson
Knowing oneself in Poimandres
How could knowing oneself transform a life, and what warrants trusting a teacher who promises salvation? Follow the teaching encounter in Poimandres and examine how the work connects knowledge with divine life.
2 lessons
Inference under challenge
What makes a sign a reason to believe something we cannot see? Follow selected Nyāya accounts and Dharmakīrti’s argument to examine the connection a sign needs, our grounds for relying on it and what a countercase can show.
9 lessons
Whitehead: becoming, experience and the world
An experience receives a world it did not make, yet becomes something that was not there before. How can both be true? Alfred North Whitehead’s Process and Reality builds a philosophy around that difficulty, asking us to begin with occasions of becoming and to explain enduring things, perception, judgment and value through their relations.
12 lessons
Heidegger: being, a shared world and its limits
Begin with familiar encounters and follow Heidegger’s questions about being, a finite life, truth, art, dwelling and technology. Examine what the arguments explain, what they leave open and how they fare under political and ethical criticism.
9 lessons
Husserl and Merleau-Ponty: experience, embodiment and a shared world
Follow Husserl and Merleau-Ponty from the appearance of a familiar thing to time, bodily skill, expression and other people. Test what their descriptions establish, where their methods differ and what still needs evidence or an ethical argument.
8 lessons
Nāgārjuna: emptiness, dependence and the two truths
Follow Nāgārjuna’s arguments that nothing has an intrinsic nature of its own, from causes and motion to persons, the two truths and the charge that the argument undermines itself. Ask what the arguments leave standing: can things exist, change and matter without such a nature?