Plato's Republic -- Book 2

Overview of Book II of Plato's Republic
Introduction of Sophisticated Definition of Goods

  • Definition of Justice: Justice has three classes according to Socrates.

    • Highest Class: It's valued for itself and its outcomes.

    • General View: Some think justice is only valued for outcomes, not for itself.

Challenge to Socrates

  • Glaucon and Adeimantus' Challenge: They want Socrates to prove justice is better than injustice, even without consequences.

  • Socrates’ Strategy: Instead of focusing on individual justice, he builds the concept of a perfect city, known as the kallipolis.

Construction of the Ideal City (Kallipolis)

  • Stages of Construction: Starts with a city based on basic needs like food, drink, and sex.

    • First City: Focusses only on basic needs, without honor or philosophy.

    • Reality of Human Psychology: Basic needs exist in everyone, suggesting this city isn’t realistic.

    • Second City (Luxurious City): Acknowledges extra desires and needs.

Issues Arising in the Kallipolis

  • Consequences of Extra Desires: Excessive desires lead to war (both internal and external).

  • Role of Guardians: Soldiers are needed to keep peace from various threats.

    • Specialization: Everyone must do what they are best at for harmony in the city.

Education of Guardians

  • Components of Guardian Education: Combines music, poetry, and physical training.

    • Purpose: Arts first, then physical training.

    • Content of Education: Guardians should hear proper tales of gods and heroes.

Glaucon's Assertion

  • Desire for a Conviction of Justice: Glaucon won’t believe that justice is better than injustice without proofs.

  • Types of Goods:

    1. Goods valued for their own sake (e.g., joy).

    2. Goods valued for their own sake and consequences (e.g., knowledge, health).

    3. Goods valued only for their outcomes (e.g., training, medical care, profit).

  • Common Opinions on Justice: Many see justice as a necessary evil for rewards rather than a true good.

Thrasymachus and the Nature of Justice

  • Thrasymachus' Argument: Argues injustice is naturally better and justice is just a weak person's pact.

  • Reputation Influence: People act justly due to fear, not because it's inherently good.

  • Justice as an Agreement: Justice comes from mutual pacts to avoid harm.

The Ring of Gyges

  • Gyges' Story: If given the invisibility ring, even just people would do unjust things.

    • This suggests that people will act unjustly if there are no repercussions.

Artificial Division of Lives

  • Comparison of Lives: Socrates suggests comparing the just life to the unjust one under fair conditions.

  • Criteria for Comparison: The unjust person should face no consequences, ensuring a fair judgment of both lives.

Conclusion on Justice vs. Injustice

  • Noble Purpose of Inquiry: The discussion focuses on how to show that justice is valuable in itself without external rewards.

    • Socrates highlights that justice seems unappealing because it appears burdensome, which misrepresents its true nature as a good.