The RepublicDescribed by the 20th-century British writer Aldous Huxley as “a noble philosophical romance,” the 10 books of Plato's The Republic cover education, ethics, politics, religion, and sociology, among other subjects. Plato himself thought of his book as a serious but nonetheless playful fable about justice. In that context, the work provides a model for thinking about political systems rather than, as has sometimes been proposed, a blueprint for an ideal state. While Plato seriously examines the subjects that The Republic covers, and while careful readers can derive much intellectual profit as well as pleasure from its pages, those readers must always bear in mind that they have before them a work of sometimes playful and satirical fiction. The date ascribed above gives that which is sometimes proposed for the fictive conversations that occur in The Republic. The actual date of composition is uncertain...