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Published online by Cambridge University Press: 07 May 2025
At the very beginning of the long dialogue between thinkers that makes up western political theory there is Plato's Republic, and at the very beginning of the Republic there is this strange and interesting exchange. Socrates asks an old man, Cephalus, if he can define justice. Cephalus says, Of course, justice means to tell the truth and to return anything you have borrowed. Socrates then asks, Suppose you have borrowed a sword from a man, and while the sword is in your possession the man goes mad. In this state of madness (mania) the man comes and asks for his sword. Does justice require that you return it?