Full Idea
A metaphysical theory hs two parts: ontology and ideology. The ontology consists of the entities which the theory says exist; the ideology consists of the ideas which are expressed within the theory using predicates. Ideology sorts into categories.
Gist of Idea
A metaphysics has an ontology (objects) and an ideology (expressed ideas about them)
Source
Alex Oliver (The Metaphysics of Properties [1996], §02.1)
Book Reference
-: 'Mind' [-], p.2
A Reaction
Say 'what there is', and 'what we can say about it'. The modern notion remains controversial (see Ladyman and Ross, for example), so it is as well to start crystalising what metaphysics is. I am enthusiastic, but nervous about what is being said.