Distinguishing a restricted quantifier that has existential import from an unrestricted quantifier that does not only has a point if existence is a substantial property that some things have and other things lack. Barack Obama has it; Sherlock Holmes does not.  The planet Venus has it; the postulated planet Vulcan does not.  This objection to Quine's criterion, then, is based on the Meinongian view that some things do not  exist.[19]  These things that do not exist typically are taken to include fictional entities, postulated entities of science, and all manner of intentional objects; sometimes (mere) possibilia, impossibilia, and various abstract entities are also included among the non-existent. Non-existent entities can be quantified over, referred to, and truly attributed properties. Existence is not a prerequisite for being talked about.