Now men engrossed in the pursuit of money are unfit to rule a state; and our entire plan rests on the hope that if the guardians rule well and live simply, the economic man will be willing to let them monopolize administration if they permit him to monopolize luxury. In short, the perfect society would be that in which each class and each unit would be doing the work to which its nature and aptitude best adapted it; in which no class or individual would interfere with others, but all would coöperate in difference to produce an efficient and harmonious whole (433–4). That would be a just state.