Lucian of Samosata De astrologia 3

[3] It was the Aethiopians that first delivered this doctrine unto men. The ground thereof was in part the wisdom of that nation, the Aethiopians being in all else wiser than all men; but in part also the benignity of their clime, since clear skyes and calm weather ever invest them, and they are not subjected to the vicissitudes of the yeere, but live in onely one season. ¹ Therefore when they discerned, first of all, that the moon hath not perpetually the same appearance, but carrieth a various aspect and changeth into divers figures, they accounted the thing good reason for wonder and empuzzlement. In consequence they sought and found the cause thereof, that the lustre of the moon is not her own but cometh to her from the sun.