De Defectu Oraculorum

On this topic it is not necessary to use more words at present. The truth is that whatever cause one may postulate as the author of these occurrences and changes, that cause will keep each of the worlds together within itself; for each world has earth and sea, and each has its owTn centre and occurrences that

affect its component bodies; it has its own transmutations and a nature and a power which preserves each one and keeps it in place. In what lies beyond, whether it be nothing or an infinite void, no centre exists, as has been said; and if there are several worlds, in each one is a centre which belongs to it alone, with the result that the movements of its bodies are its own, some towards it, some away from it, and some around it, quite in keeping with the distinctions which these men themselves make. But anyone who insists that, while there are many centres, the heavy substances are impelled from all sides towards one only,[*](Cf.Moralia, 928 a-b.) does not differ at all from him who insists that, while there are many men, the blood from all shall flow together into a single vein and the brains of all shall be enveloped in a single membrane, deeming it a dreadful thing in the case of natural bodies if all the solids shall not occupy one place only and the fluids also only one place. Such a man as that will be abnormal, and so will he be who is indignant if everything constituting a whole has its own parts, of which it makes use in their natural arrangement and position in every case. For that would be preposterous, and so too if anybody called that a world which had a moon somewhere inside it[*](Instead of revolving around it.); as well call that a man who carries his brains in his heels or his heart in his head But to make more worlds than one, each separate from the other, and to delimit and distinguish the parts belonging to each to go with the whole is not preposterous. For the land and the sea and the heavens in each will be placed to accord with nature, as is fitting; and each of the worlds has its above and below and its round about and its centre, not with reference to another world or the outside, but in itself and with reference to itself.