Dr. Lennox is professor of history and philosophy of science at the University of Pittsburgh. He is a founding member of the Ayn Rand Society (APA) and author of Aristotle's Philosophy of Biology (2001) and Aristotle: On the Parts of Animals (2001). With Allan Gotthelf he served as associate editor of the first two volumes of Ayn Rand Society Philosophical Studies: Metaethics, Egoism, and Virtue: Studies in Ayn Rand's Normative Theory and Concepts and Their Role in Knowledge: Reflections on Objectivist Epistemology. (based on info from 2017 )