The Republic (Greek: Πολιτεία, Politeia; Latin: Res Publica[1]) is a Socratic dialogue, written by Plato around 380 BC, concerning justice (δικαιοσύνη), the order and character of the just city-state and the just man. It is Plato's best-known work, and has proven to be one of the world's most influential works of philosophy and political theory, both intellectually and historically. In the book's dialogue, Socrates discusses the meaning of justice and whether or not the just man is happier than the unjust man with various Athenians and foreigners.