Plato: The Republic

1. BOOK I (continued)

Well said, Cephalus, I replied; but as concerning justice, what is it?-- to speak the truth and to pay your debts--no more than this? And even to this are there not exceptions? Suppose that a friend when in his right mind has deposited arms with me and he asks for them when he is not in his right mind, ought I to give them back to him? No one would say that I ought or that I should be right in doing so, any more than they would say that I ought always to speak the truth to one who is in his condition.

You are quite right, he replied.

But then, I said, speaking the truth and paying your debts is not a correct definition of justice.

CEPHALUS - SOCRATES - POLEMARCHUS

Quite correct, Socrates, if Simonides is to be believed, said Polemarchus interposing.

I fear, said Cephalus, that I must go now, for I have to look after the sacrifices, and I hand over the argument to Polemarchus and the company.

Is not Polemarchus your heir? I said.

To be sure, he answered, and went away laughing to the sacrifices.

SOCRATES - POLEMARCHUS

Tell me then, O thou heir of the argument, what did Simonides say, and according to you truly say, about justice?

He said that the repayment of a debt is just, and in saying so he appears to me to be right.

I should be sorry to doubt the word of such a wise and inspired man, but his meaning, though probably clear to you, is the reverse of clear to me. For he certainly does not mean, as we were now saying that I ought to return a return a deposit of arms or of anything else to one who asks for it when he is not in his right senses; and yet a deposit cannot be denied to be a debt.