Immanuel Kant
versus
Confucius
Is a good act one done from duty, or one that fits the person you have become?
Friedrich Nietzsche
versus
Thomas Aquinas
Is pity a virtue or a weakness?
Averroes
versus
Al-Ghazali
Can reason sit in judgement on revelation?
Baruch Spinoza
versus
Arthur Schopenhauer
Is suffering something to be understood, or something to be escaped?
Zhuangzi
versus
Aristotle
What is a good life for a human being?
David Hume
versus
René Descartes
Can anything be known with certainty?
Karl Marx
versus
John Stuart Mill
Does liberty mean anything without the means to use it?
Simone de Beauvoir
versus
Jean-Paul Sartre
Is freedom the same for everyone who has it?
The debate is about this:
Expected thinking time about 22 seconds
Philosophy is an argument, not a set of conclusions, and it reads badly when it is presented as a list of positions. Almost every philosopher in this Atlas was answering someone — Aristotle answering Plato, Hume answering the rationalists, Nietzsche answering nearly everybody — and the disagreement is usually more revealing than either position alone. This tool exists to put that disagreement back.
Choose a question and two thinkers, and the Atlas sets them talking about it. The pairing is yours. Kant against Confucius on duty, Spinoza against Schopenhauer on suffering, Wollstonecraft against Rousseau on education — combinations no textbook would print, because no such exchange ever happened.
It is a conversation, not a formal debate. The first thinker answers your question, the second answers what has just been said, and so on, back and forth. Each reply picks up a particular point from the one before it: agreeing with part, pushing back on part, conceding a point or pressing an objection. A summation follows: the strongest point each side made, the weakest point in each, and where they turned out to agree.
Six or eight turns in all, and deliberately short ones. A conversation is spoken rather than written, and long subordinate clauses are how a transcript becomes unreadable. You advance the debate yourself, one turn at a time.
Each debater argues from the record on this site: the position summarised on their own page, the tension their thought was working inside, the schools they belonged to, and their recorded words. Neither side is arguing from a general impression of a famous name. The motion is drawn from the question you asked and states what is actually at issue between these two — and where they divide over what the question even asks, it says so rather than forcing a for-and-against that neither would recognise.
Where a question is one a philosopher could not have addressed — anything after his death, or a technology he never saw — he reasons from his own principles and says so rather than pretending otherwise. Where scholars genuinely dispute what someone held, the exchange acknowledges the dispute instead of asserting one reading.
They are not transcripts, and nothing here was ever said. Quotations are only ever the recorded words already published on these philosophers’ pages; every other line is paraphrase, constructed for this exchange. A debate is a way of thinking through a disagreement, not evidence about what either man wrote. Read them as you would read a good tutorial — as a starting point for the primary texts, which are linked from every philosopher’s page.