Household management involves the acquisition of riches, but must be distinguished from money-making for its own sake. Financial exchange first involved bartering. However, with the difficulties of transmission between countries widely separated from each other, money as a currency arose. At first it was merely a specific amount of weighted or measured metal. Afterwards it received a stamp to mark the amount.
Demand is the real standard of value.
Usury is an unnatural and reprehensible use of money. The communal ownership of wives and property as sketched by Plato in the Republic rests on a false conception of political society. For, the state is not a homogeneous unity, as Plato believed, but rather is made up of dissimilar elements. The classification of constitutions is based on the fact that government may be exercised either for the good of the governed or of the governing, and may be either concentrated in one person or shared by a few or by the many. The perverted forms of these are tyranny, oligarchy and democracy.