"...that story, as it is told, has the fashion of a legend, but the truth of it lies in the occurrence of a shift of the bodies in the heavens which move round the earth and a destruction of the things on the earth by fierce fire, which recurs at long intervals.
At such times all they that dwell on the mountains, and in high and dry places, suffer destruction more than those who dwell near to rivers or the sea; and in our case the Nile, our saviour in other ways, saves us also at such times from this calamity by rising high. And when, on the other hand, the Gods purge the earth with a flood of waters, all the herdsmen and shepherds that are in the mountains are saved, hut those in the cities of your land are swept into die sea by the streams; whereas in our country neither then nor at any other time does the water pour down over our fields from above, on the contrary it all tends naturally to swell up from below. Hence it is, for these reasons, that what is here preserved is reckoned to be the most ancient; the truth being that in every place where there is no excessive heat or cold to prevent it, there always exists some human stock, now more, now less in number. And if any event has occurred that is noble or great or in any way conspicuous, whether it be in your country or in ours or in some other place of which we know by report, all such events are recorded from of old and preserved here in our temples; whereas your people and the others are but newly equipped, every time, with letters and all such arts as civilised States require; and when, after the usual interval of years, like a plague, the flood from heaven comes sweeping down afresh upon your people, it leaves none of you but the unlettered and the uncultured, so that you become young as ever, with no knowledge of all that happened in old times in this land or in your own."