Full Idea
In Aristotle's metaphysics of substance, there are only as many properties as actually inhere in existent spatiotemporal particulars.
Gist of Idea
For Aristotle, there are only as many properties as actually exist
Source
report of Aristotle (Metaphysics [c.324 BCE], props) by Dale Jacquette - Ontology Ch.2
Book Reference
Jacquette,Dale: 'Ontology' [Acumen 2002], p.60
A Reaction
This would mean, oddly, that squareness ceased to be a property if the last square thing vanished. But then how do we establish the existence of unrealised properties? Is 'bigger than the biggest existent object' a property?