But the Persians, supposing that they had penetrated more within the confines of the truth, asserted that the Deity is luminous, a light contained in air. The Babylonians, however, affirmed that the Deity is dark, which very opinion also appears the consequence of the other; for day follows night, and night day. Do not the Egyptians, however, who suppose themselves more ancient than all, speak of the power of the Deity? [This power they estimate by] calculating these intervals of the parts [of the zodiac and, as if] by a most divine inspiration, they asserted that the Deity is an indivisible monad, both itself generating itself, and that out of this were formed all things.