Full Idea
My conclusion is that categories are relativistic, used for systematization, and that it is not an intrinsic feature of an object to belong to a category, and that there is no fundamental distinction between individuals and properties.
Gist of Idea
Categories merely systematise, and are not intrinsic to objects
Source
Jan Westerhoff (Ontological Categories [2005], Intro)
Book Reference
Westerhoff,Jan: 'Ontological Categories' [OUP 2005], p.9
A Reaction
[compressed] He calls his second conclusion 'anti-essentialist', but I think we can still get an account of (explanatory) essence while agreeing with his relativised view of categories. Wiggins might be his main opponent.