This article relies largely or entirely on a single source. (July 2010)
He is best known for his work in meta-ontology. He coined the phrase "soft ontology" and has authored over 70 books and papers. Many of his books deal with objections to ontology based upon common sense and that most disputes involving metaphysical objects revolve around linguistics and are merely verbal in nature. Among his books are "Against Revisionary Ontology" (1982 - Oxford University Press) and "Physical-Object Ontology, Verbal Disputes, and Common Sense" (2005 - Philosophy and Phenomenological Research 70 (1):67–97).
- Brandeis University faculty guide, retrieved 2010-06-26.