Guides for every
stubborn question
Each guide explains one idea in plain language, shows the strongest objections and tells you what to read next.
Stoicism and the things you can control
What is up to us, what is not, and how to tell them apart.
Key thinker: Epictetus
Valid, sound, true: three words people mix up
How to judge an argument by its shape before its content.
Key thinker: Aristotle
Can you be sure you are not dreaming?
Radical doubt and the one thing it cannot touch.
Key thinker: Descartes
The social contract in ten minutes
Why anyone should obey a government at all.
Key thinker: Hobbes
Is beauty in the eye of the beholder?
Taste, disagreement and whether some judgments are better.
Key thinker: Hume
Plato's cave, explained without the jargon
Prisoners, shadows and the climb into daylight.
Key thinker: Plato
The trolley problem and what it really tests
Why switching feels fine and pushing does not.
Key thinker: Philippa Foot
Free will: three positions and their costs
Determinism, libertarianism and the compatibilist middle.
Key thinker: Hume
Justice behind the veil of ignorance
Choosing rules for a society without knowing your place in it.
Key thinker: John Rawls
Paradoxes worth losing sleep over
The liar, the heap and what they show about language.
Key thinker: Zeno
Reading Kant's Groundwork without giving up
The categorical imperative, section by section.
Key thinker: Kant
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