The enslaved people labored upon the monuments of their masters, often during the entire lifetime of these latter. It may be seen from contemporary wall-paintings that the discipline maintained during the work of construction was not lacking in strictness, but it was certainly not that excessive oppression generally imagined. A body of over one hundred thousand workmen sorely oppressed might, even in Egypt, have been difficult to manage by a hated despot. It was principally during the annual inundations of the Nile that the kings employed and fed the poorer classes, at that time, perhaps, unable otherwise to subsist. During other seasons the rulers could not have taken the tillers of the soil from fields and flocks without great injury to their own interests. It is no mark of a selfish despotism, which builds without reference to the welfare of land and subjects, that the kings removed their enormous sepulchral piles from the vicinity of their residences--from the valuable alluvion of the Nile to the barren edge of the desert. They thus, as Plato recommends, occupied no place with dwellings of the dead where it would be possible for the living to find nourishment. The fertile ground of the valley was not encumbered by the colossal pyramids, which were so numerous in ancient Egypt that Lepsius found the remains of sixty-seven in the forty-eight kilometers alone between Cairo and the Fayoum, on the western bank of the river. Supposing only five score such pyramids, with an average area of one hundred ares each, two elevenths of that of the great pyramid of Gizeh, to have stood in the narrow valley of the Nile, what an enormous loss in the grain production of that most fertile but limited land would so great a reduction of arable surface have caused during the past five thousand years!
The fundamental motive of the pyramid is the funeral mound. A small upheaval above the natural level of the ground results of itself from the earth displaced by the bulk of the buried body. Our present practice of interment clearly illustrates this. Increased dimensions elevate the mound to an independent monument. Many nations, some of a high degree of civilization, have contented themselves with such imposing hills of earth over the grave,--tumuli, which, from the manner of their construction, assumed a conical form. Others placed the mound upon a low cylinder, thus better marking its distinction from accidental natural elevations. The Egyptians and the Mesopotamians rejected the cone entirely, and formed, with plane surfaces upon a square plan, the highly monumental pyramid. Peculiar to the former people are the inclined sides which give to the pyramid its absolute geometrical form, as opposed to the terraced structures of Chaldæa. The sand of the desert ebbed and flowed fifty centuries ago as constantly as in our time, when the sphinx, after being uncovered to its base, has been quickly hidden again to the neck. Rulers, unwilling that their gigantic tombs should be thus submerged, were obliged to secure to them great height, with inclined and unbroken sides, upon which the sand could not lodge.