Republic

⚖The case for it

The text that launched Western philosophy. Justice, the ideal state, the allegory of the cave, the divided line. Plato builds an entire metaphysics to answer 'What is justice?' Twenty-four centuries later, every political philosopher is still arguing with this book. The cave allegory alone is worth the price of admission: you're probably still in it.

— the canon

✕The case against

After Thrasymachus is muscled into silence in Book I, Socrates never faces real opposition again; Glaucon and Adeimantus spend nine books agreeing. The central argument runs on an analogy between city and soul that is asserted, never earned. And the ideal city bans poets, breeds guardians, and lies to its citizens for their own good. Justice, allegedly.

— the honest librarian