Full Idea
I do not believe that tropes or modes can have well-defined or fully determinate identity-conditions, and hence do not believe that they should be thought of as 'objects'.
Gist of Idea
Tropes cannot have clear identity-conditions, so they are not objects
Source
E.J. Lowe (The Possibility of Metaphysics [1998], 8.3)
Book Reference
Lowe,E.J.: 'The Possibility of Metaphysics' [OUP 2001], p.182
A Reaction
Lowe's account would still allow them to be 'entities'. Any proposal that they have an existence of their own, apart from the objects on which they depend, sounds very misguided. We won't make progress if we don't identify the real properties.