Anthropocentrism in philosophy is deeply paradoxical. Ethics investigates the human good, epistemology investigates human knowledge, and antirealist metaphysics holds that the world depends on our cognitive capacities. But humans' good and knowledge, including their language and concepts, are empirical matters, whereas philosophers do not engage in empirical research. And humans are inhabitants, not 'makers', of the world. Nevertheless, all three (ethics, epistemology, and antirealist metaphysics) can be drastically reinterpreted as making no reference to humans.

Do we know or even have evidence that external material objects exist? Drawing powerfully on techniques from both analytic and continental philosophy, Butchvarov offers a strikingly original approach to this perennial issue. He argues that only a direct realist view of perception--the view that in perception we are directly aware of material objects--has any hope of providing a compelling response to the skeptic.
The seemingly insuperable problem for direct realism has always been to explain hallucination, dreaming, and other situations where the object of awareness is not a really existing physical object. This has led many philosophers to adopt views in which perceptual consciousness involves a subjective state that is the direct object of awareness. Butchvarov argues persuasively that all such views are helpless in the face of the skeptic's arguments. His radical innovation is to insist that the direct object of perceptual and even dreaming and hallucinatory experience is usually a material object, but not necessarily one that actually exists. This leads to a sophisticated metaphysics in which reality is ultimately constructed by human decisions out of objects that are ontologically more basic but which cannot be said in themselves to be either real or unreal.
Butchvarov's ingenious approach to a longstanding philosophical issue, as well as the extensive range of his references to traditional and contemporary discussions of the topic, makes Skepticism about the External World a thrilling and essential book for philosophers and philosophically minded readers.

Are there nonexistent things? What is the nature of informative identity statements? Are the notions of essential property and of essence intelligible, and, if so, how are they to be understood? Are individual things material substances or clusters of qualities? Can the account of the unity of a complex entity avoid vicious infinite regresses?

These questions have attracted widespread attention among philosophers recently, as evidenced by a proliferation of articles in the leading philosophical journals. In Being Qua Being they receive systematic, unified treatment, grounded in an account of the nature of the application to the world of our conceptual apparatus. A central thesis of the book is that the topic of identity is primary, and that existence and predication, both essential and accidental, are to be understood in terms of identity.