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 in the purchase or sale of a horse; a man who is knowing about horses would be better for that, would he not?