Let us first consider the inner or socio-psychological causes of this contrast between the territorial and the maritime state. States are maintained by the same principle from which they arise. Conquest of land and populations is the _ratio essendi_ of a territorial state; and by the repeated conquest of lands and populations it must grow, until its natural growth is checked by mountain ranges, desert, or ocean, or its sociological bounds are determined by contact with other states of its own kind, which it can not subjugate. The maritime state, on the other hand, came into being from piracy and trade; and through these two means, it must strive to extend its power. For this purpose, no extended territory need be absolutely subjected to its sway. There is no need to carry its development beyond the first five stages. The maritime states rarely, and only when compelled, proceed beyond the fifth stage, and attain to complete intra-nationality and amalgamation. Usually, it is enough if other sea nomads and traders are kept away, if the monopoly of robbery and trade is secured, and if the “subjects” are kept quiet by forts and garrisons. Important places of production are, of course, actually “dominated”; and this applies especially to mines, to a few fertile grain belts, to woods with good lumber, to salt works, and to important fisheries. Domination here, therefore, means permanent administration, by making the subjects work these for the ruling class. It is only later in the development, that there arises a taste for “lands and serfs” and large domains for the ruling class _beyond the confines of the narrow and original limits of the State_. This happens when the maritime state by the incorporation of subjugated territories has become a mixture of the territorial and the maritime forms. But even in that case, and in contradistinction to territorial states, large landed properties are merely a source of money rentals, and are in nearly all cases administered as absentee-property. This we find in Carthage and in the later Roman Empire.