Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: Silent spectators in this work include the orator Lysias and Euthydemus. Polemarchus argues only in the first section and then disappears from the dialogue. Carried on in the house of Cephalus, the principle speakers are Glaucon and Adeimantus, though the chief antagonist to the main figure is Thrasymachus. The discussion in this dialogue centers on political and individual justice, using such vehicles as the "Myth of Ur" and the "Allegory of the Cave" to strengthen the concept of the ideal state created by Socrates. FTP, identify this dialogue that discusses the philosopher-king by Plato.
A:
Social Science