In creating a notion of dominium, then, and thus creating the modern principle of absolute private property, what Roman jurists were doing first of all was taking a principle of domestic authority, of absolute power over people, defining some of those people (slaves) as things, and then extending the logic that originally applied to slaves to geese, chariots, barns, jewelry boxes, and so forth—that is, to every other sort of thing that the law had anything to do with.