Plato: The Republic

1. BOOK I (continued)

And what similar use or power of acquisition has justice in time of peace?

In contracts, Socrates, justice is of use.

And by contracts you mean partnerships?

Exactly.

But is the just man or the skilful player a more useful and better partner at a game of draughts?

The skilful player.

And in the laying of bricks and stones is the just man a more useful or better partner than the builder?

Quite the reverse.

Then in what sort of partnership is the just man a better partner than the harp-player, as in playing the harp the harp-player is certainly a better partner than the just man?

In a money partnership.

Yes, Polemarchus, but surely not in the use of money; for you do not want a just man to be your counsellor the purchase or sale of a horse; a man who is knowing about horses would be better for that, would he not?

Certainly.

And when you want to buy a ship, the shipwright or the pilot would be better?

True.

Then what is that joint use of silver or gold in which the just man is to be preferred?

When you want a deposit to be kept safely.

You mean when money is not wanted, but allowed to lie?

Precisely.

That is to say, justice is useful when money is useless?

That is the inference.