Full Idea
It is hard to think of anything true and significant that could not be said using the idea of thisness not better said while respectiving the distinctions designation/predication and particular/universal.
Gist of Idea
The idea of 'thisness' is better expressed with designation/predication and particular/universal
Source
David Wiggins (Sameness and Substance Renewed [2001], 4.7)
Book Reference
Wiggins,David: 'Sameness and Substance Renewed' [CUP 2001], p.126
A Reaction
Politis calls 'thisness' the 'ultimate subject of predication', so it is covered in logic by the name for an object. But we need to understand objects, and not just refer to them, and I'm not sure that 'universals' advance our understanding.