  But the concentration of political power in Kallipolis differs in at  least two ways from the concentration in actual totalitarian states.  First, Socrates insists that in the ideal city, all the citizens will agree about who should rule. This agreement is the city’s moderation  (430d–432a), caused by the city’s justice (433b, cf. 351d). Socrates  also suggests some ways of explaining how the non-philosophers will  agree that the philosophers should rule. First, he offers a way of  persuading those who lack knowledge that only the philosophers have  knowledge (476d–480a), which in effect offers a way of explaining to  the non-philosophers that only the philosophers have the knowledge  required to rule. Second, he suggests that the non-philosophers will  be struck by the philosophers’ obvious virtue (500d–502a). (Their  virtue would be especially striking to the producers, since the  philosophers do without private property, which the producers love so much.) Finally, he suggests that in Kallipolis, the producers will be grateful to the guardian classes for keeping the city safe and  orderly, wherein they can achieve their good, as they see it, by  optimally satisfying their necessary appetitive attitudes (463a–b).