The Republic of Plato

And he who is not on a voyage has no need of a pilot?

No.

Then in time of peace justice will be of no use?

I am very far from thinking so.

333You think that justice may be of use in peace as well as in war?

Yes.

Like husbandry for the acquisition of corn?

Yes.

Or like shoemaking for the acquisition of shoes,—that is what you mean?

Yes.

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

Justice is useful in contracts, In contracts, Socrates, justice is of use.

And by contracts you mean partnerships?

Exactly.

BBut 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 in the purchase or sale of a horse; a man who is knowing about Chorses 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?

especially in the safe-keeping of deposits. When you want a deposit to be kept safely.

You mean when money is not wanted, but allowed to lie? 9

Precisely.

But not in the use of money: and if so, justice is only useful when money or anything else is useless. That is to say, justice is useful when money is useless?

DThat is the inference.

And when you want to keep a pruning-hook safe, then justice is useful to the individual and to the state; but when you want to use it, then the art of the vine-dresser?

Clearly.

And when you want to keep a shield or a lyre, and not to use them, you would say that justice is useful; but when you want to use them, then the art of the soldier or of the musician?

Certainly.

And so of all other things;—justice is useful when they are useless, and useless when they are useful?

That is the inference.

EThen justice is not good for much. But let us consider this further point: Is not he who can best strike a blow in a boxing match or in any kind of fighting best able to ward off a blow?

Certainly.

And he who is most skilful in preventing or escaping2 from a disease is best able to create one?