Full Idea
The entities included in a theoretical ontology are those minimally required for an adequate philosophical semantics. ...These are the objects that we say exist, to which we are ontologically committed.
Gist of Idea
Ontology must include the minimum requirements for our semantics
Source
Dale Jacquette (Ontology [2002], Pref)
Book Reference
Jacquette,Dale: 'Ontology' [Acumen 2002], p.-5
A Reaction
Worded with exquisite care! He does not say that ontology is reducible to semantics (which is a silly idea). We could still be committed, as in a ghost story, to existence of some 'nameless thing'. Things utterly beyond our ken might exist.