with imposing a tribute on the vanquished: who being, in consideration of that burden, freed from the expense and trouble of their own military and naval protection, might enjoy under it a considerable share of economical prosperity, while the ascendant community obtained a surplus of wealth, available for purposes of collective luxury or magnificence. From such a surplus the Parthenon and the Propylæa were built, the sculptures of Pheidias paid for, and the festivals celebrated, for which Æschylus, Sophocles, Euripides, and Aristophanes composed their dramas. But this state of political relations, most useful, while it lasted, to the progress and ultimate interest of mankind, had not the elements of durability. A small conquering community which does not incorporate its conquests, always ends by being conquered. Universal dominion, therefore, at last rested with the people who practised this art with the Romans; who, whatever were their other devices, always either began or ended by taking a great part of the land to enrich their own leading citizens, and by adopting into the governing body the principal possessors of the remainder. It is unnecessary to dwell on the melancholy economical history of the Roman empire. When inequality of wealth once commences, in a community not constantly engaged in repairing by industry the injuries of fortune, its advances are gigantic; the great masses of wealth swallow up the smaller. The Roman empire ultimately became covered with the vast landed possessions of a comparatively few families, for whose luxury, and still more for whose ostentation, the most costly products were raised, while the cultivators of the soil were slaves, or small tenants in a nearly servile condition. From this time the wealth of the empire progressively declined. In the beginning, the public revenues, and the resources of rich individuals, sufficed at least to cover Italy with splendid edifices, public and private; but at length so dwindled under the enervating influences of misgovernment, that what remained was not even sufficient to keep those edifices from
