Alice: I just bought a shelf from Ikea.
Bob: Strictly speaking, you bought the matter of a shelf from Ikea.
Alice: Well, that’s the thing that matters, isn’t it? 😛
Bob: Not really, since it’s the form that makes the matter a shelf.
Alice: That’s a different matter entirely, I was just —
Bob: Not so, it would be the same matter, just with a different form.
Alice: I was trying to say that there’s no disagreement of any substance here.
Bob: Agreed. For there to be a disagreement regarding substance, one of us would need to think the shelf had a substantial form.
Alice: No, I had something much simpler in mind.
Bob: Come now, you can’t seriously be considering whether the shelf is simple? It is evident that it must be a form-matter composite.
Alice: My point is that we’re talking in different categories.
Bob: Well, I wasn’t really thinking about the categories at all.
Alice: Yes, that was evident.