In the early history of Asia and Africa, Nomadism and Agriculture are the two antagonist facts. The geography of Asia and of Africa necessitated a nomadic life. But the nomads were the terror of all those whom the soil or the advantages of a market had induced to build towns. Agriculture therefore was a religious injunction, because of the perils of the state from nomadism. And in these late and civil countries of England and America these propensities still fight out the old battle, in the nation and in the individual. The nomads of Africa were constrained to wander, by the attacks of the gad-fly, which drives the cattle mad, and so compels the tribe to emigrate in the rainy season and to drive off the cattle to the higher sandy regions. The nomads of Asia follow the pasturage from month to month. In America and Europe the nomadism is of trade and curiosity; a progress, certainly, from the gad-fly of Astaboras to the Anglo and Italo-mania of Boston Bay. Sacred cities, to which a periodical religious pilgrimage was enjoined, or stringent laws and customs, tending to invigorate the national bond, were the check on the old rovers; and the cumulative values of long residence are the restraints on the itineracy of the present day. The antagonism of the two tendencies is not less active in individuals, as the love of adventure or the love of repose happens to predominate. A man of rude health and flowing spirits has the faculty of rapid domestication, lives in his wagon and roams through all latitudes as easily as a Calmuc. At sea, or in the forest, or in the snow, he sleeps as warm, dines with as good appetite, and associates as happily as beside his own chimneys. Or perhaps his facility is deeper seated, in the increased range of his faculties of observation, which yield him points of interest wherever fresh objects meet his eyes. The pastoral nations were needy and hungry to desperation; and this intellectual nomadism, in its excess, bankrupts the mind through the dissipation of power on a miscellany of objects. The home-keeping wit, on the other hand, is that continence or content which finds all the elements of life in its own soil; and which has its own perils of monotony and deterioration, if not stimulated by foreign infusions. Every thing the individual sees without him corresponds to his states of mind, and every thing is in turn intelligible to him, as his onward thinking leads him into the truth to which that fact or series belongs. The primeval world,—the Fore-World, as the Germans say,—I can dive to it in myself as well as grope for it with researching fingers in catacombs, libraries, and the broken reliefs and torsos of ruined villas.