These two opposite but interlocking principles of social existence provide the basic structures in terms of which the component parts of the modern state are articulated and understood. As both contribute particular characteristics to the subjects involved in them, part of the problem for the rational state will be to ensure that each of these two principles mediates the other, each thereby mitigating the one-sidedness of the other. Thus, individuals who encounter each other in the external relations of the market place and who have their subjectivity shaped by such relations also belong to families where they are subject to opposed influences. Moreover, even within the ensemble of production and exchange mechanisms of civil society individuals will belong to particular estates (the agricultural estate, that of trade and industry, and the universal estate of civil servants (PR: §§199–208)), whose internal forms of sociality will show family-like features.