It will be recalled that Aristotle cites two examples of relations of this type: relations of knowledge and of vision, both of which are internal to the knower and seer, but external to the objects seen and known. However, neither of these relations can be the ones which exist between God and world for they are in a sense cul-de-sacs. Action is involved in their establishment, but they do not necessarily lead to further action, and so they cannot account for (...) the eternal movement of the universe. Only when their objects become desiderata do they result in additional activity. (shrink)