The Republic, Book 7 summary
Book 7 of 10 · 44 min to read the book
In Book 7, Socrates describes prisoners mistaking shadows for reality, then explains education as turning the soul toward truth and requiring enlightened philosophers to govern. He and Glaucon select arithmetic and geometry for the guardians’ education, then correct their proposed sequence by placing the study of solids before astronomy.
What happens
- Socrates imagines chained prisoners who mistake shadows for reality, while a freed prisoner painfully adjusts to sunlight.
- The returning prisoner struggles in darkness, and the others resist anyone who tries to free them.
- Socrates explains the ascent as education toward the good, which redirects an existing power within the soul.
- He argues that educated philosophers must share political duties because the State seeks the welfare of all citizens.
- Arithmetic and geometry become required studies because they direct thought beyond sensory appearances toward unchanging being.
- Socrates corrects the proposed order of studies: solids must follow plane geometry and precede astronomy.

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Quick check
Which study does Socrates place between plane geometry and astronomy?

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