Full Idea
On the interpretation of Aristotelian matter that I shall propose, matter seriously threatens the intrinsic unity, and hence the substantiality, of the object to which it contributes.
Gist of Idea
Aristotelian matter seriously threatens the intrinsic unity and substantiality of its object
Source
Mary Louise Gill (Aristotle on Substance [1989], Intro)
Book Reference
Gill,Mary Louise: 'Aristotle on Substance: Paradox of Unity' [Princeton 1989], p.3
A Reaction
Presumably the thought is that if an object is form+matter (hylomorphism), then forms are essentially unified, but matter is essentially unified and sloppy.