No one will be less likely to commit adultery, or to dishonour his father and mother, or to fall in his religious duties?
No one.
And the reason is that each part of him is doing its own business, whether in ruling or being ruled?
Exactly so.
Are you satisfied then that the quality which makes such men and such states is justice, or do you hope to discover some other?
Not I, indeed.
Then our dream has been realised; and the suspicion which we entertained at the beginning of our work of construction, that some divine power must have conducted us to a primary form of justice, has now been verified?
Yes, certainly.
And the division of labour which required the carpenter and the shoemaker and the rest of the citizens to be doing each his own business, and not another's, was a shadow of justice, and for that reason it was of use?
Clearly.