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I
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- Cephalus defines justice as paying what one owes to men and gods.
- Polemarchus says the just man does well by his friends and harms his enemies.
- Thrasymachus says justice is whatever is to the advantage of “the stronger.”
- Socrates refutes all these definitions of justice.
- Socrates considers, and refutes, whether the unjust man lives a happier life than the just man.
- Socrates concludes that injustice is always inferior to justice.
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II
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- Socrates says that justice is something we value for itself and for its consequences, like knowledge.
- Socrates proposes first to examine the justice of the city, because it is easier to determine what is just for the group then for the individual.
- The residents of the ideal city are specialized, each with their own roles.
- There are three classes in the ideal city, the producers (craftsmen and laborers), the auxiliaries (warriors), and the guardians, who rule.
- Residents of the city are carefully educated, including specifically selected and censored literature.
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III
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- Socrates describes education in the city. Imitative literature, in which the author presents different characters, is forbidden since it contains falsehoods.
- Children should only be exposed to the good and the pure, so that they will become good and pure by following positive models.
- The rulers must love the city’s welfare above all else. The guardians must be carefully tested to determine those most suited to rule.
- The guardians may not own anything beyond what is necessary. They will dine in mess halls and are forbidden to touch gold or silver.
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IV
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- The goal is happiness for the city as a whole, not just for one person or class.
- Justice lies in each person performing his own role properly, and not interfering with others performing their role.
- In the just man the rational part of the soul rules the appetite and the will.
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V
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- For guardians, the traditional family will be abolished. Guardians of both sexes will live and train together.
- When all of the city is “family,” and goods are owned equally, there is no discord
- For the ideal city to become real, either philosophers must become kings, or kings become philosophers.
- Only the philosopher understands the Forms, the ideal and abstract version of things, versus the poor copies in the physical world.
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VI
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- Socrates attempts to prove that the philosopher is best suited to rule.
- The philosopher king must be carefully chosen from the best guardians, and specially educated.
- Socrates introduces the metaphor of the Line to describe the true philosopher.
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VII
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- In the allegory of the cave, prisoners see shadows moving along the wall, and they assume the shadows are real.
- One day a prisoner escapes and realizes that the objects he sees in sun light are the real versions of the shadows.
- Education is the process of turning the soul around (just as the prisoner in the cave turned to the light) and enticing people to look in the right place for knowledge.
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VIII
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- Socrates describes four types of government— Timocracy, the Oligarchy, Democracy, and Tyranny.
- Socrates imagines a gradual failure of the city as it passes through each type of government.
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IX
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- The just man governs his appetites, and his reason is in control. He can choose his actions and is therefore happier than the tyrant.
- The just man, who has experienced all three forms of pleasure, finds the pleasures of knowledge to be the best.
- The unjust man starves his reason and feeds his appetites and desires, making himself miserable.
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X
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- Socrates explains that artists seem to create things, but they only create copies of the ideal Forms.
- Socrates says that the soul is immortal, and tells the Myth of Er.
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