The following important information is missing from this article or section:
Metaphysics are always complex topics that a trivial one-liner cannot do justice to. It would be nice to find out where and in what context this occurs or is used. A web link should not be a placeholder for missing article text.
Prius and posterior are in the metaphysics of Aristotle , a matched pair, with the German meaning advance Continuous and Nachkommendes , Derived . Reference is a natural or assumed reference point.
