Full Idea
Substances have a kind of unity that mere collocations of properties do not have, namely an instrinsic unity. So substances cannot be collocations - bundles - of properties.
Clarification
Things are 'collocated' if they are pulled together
Gist of Idea
Unlike bundles of properties, substances have an intrinsic unity
Source
Cynthia Macdonald (Varieties of Things [2005], Ch.3)
Book Reference
Macdonald,Cynthia: 'Varieties of Things' [Blackwell 2005], p.91
A Reaction
A team is a unity. Compare a similar thought, Idea 1395, about personal identity. How can something which is a pure unity have more than one property? What distinguishes substances? Why can't a substance have a certain property?
Related Idea
Idea 1395 Why would a thought be a member of one bundle rather than another? [Carruthers]