Full Idea
Identification rests upon organization into entities and kinds. The response to the question 'Same or not the same?' must always be 'Same what?'. ...Identity or constancy in a world is identity with respect to what is within that world as organised.
Gist of Idea
Things can only be judged the 'same' by citing some respect of sameness
Source
Nelson Goodman (Ways of Worldmaking [1978], 1.4a)
Book Reference
Goodman,Nelson: 'Ways of Worldmaking' [Hackett 1984], p.8
A Reaction
And the gist of his book is that 'organised' is done by us, not by the world. He seems to be committed to the full Geachean relative identity, rather than the mere Wigginsian relative individuation. An unfashionable view!