A four-year philosophy curriculum
From the Pre-Socratics of Miletus to contemporary debates on consciousness — Liminal is the philosophy degree you didn't take, in your pocket, in your own time.
23 courses, organized into four years from Plato to Wittgenstein.
From Thales to Simone de Beauvoir. Biographies, ideas, quotes, influence maps.
A searchable glossary cross-linked with the lessons.
Plato's Cave, the Trolley Problem, Mary the Color Scientist, and more.
Test your understanding with explanations on every answer.
An SM-2 review system for the key terms — so they stick.
Listen on a walk, on the bus, in bed. No subscription, no streaming.
Quote, Term, and Philosopher of the day — your daily nudge to think.
Year 1 — Ancient. Pre-Socratics, Socrates, Plato, Aristotle, Stoicism, Epicureanism, Skepticism, Neoplatonism.
Year 2 — Medieval & Early Modern. Augustine, Islamic and Jewish philosophy, Aquinas, Machiavelli, Hobbes, Descartes, Spinoza, Leibniz, Locke, Berkeley, Hume.
Year 3 — Modern. Kant, German Idealism, Bentham, Mill, Marx, Schopenhauer, Kierkegaard, Nietzsche, American Pragmatism.
Year 4 — Contemporary. Frege, Russell, Wittgenstein, the Vienna Circle, Quine, Husserl, Heidegger, Sartre, Beauvoir, Camus, the Frankfurt School, Foucault, Derrida, Rawls, Kuhn, philosophy of mind, language, science, and ethics.
Liminal collects no data and serves no ads. Every lesson, every philosopher, every quiz is already on your device. The first 10 lessons are free; one optional purchase unlocks the rest, once, with no subscription.