I work on ancient Greek philosophy, focusing in the areas of metaphysics and epistemology.  My recent research is on Plato’s metaphysics and the topic of "self-predication".  Scholars have often criticized Plato for holding the view that all forms “self-predicate”.  For instance, they see Plato as holding that the form of tallness is itself a tall thing, which appears to conflict with his other views about forms.  I defend Plato against such a criticism, arguing that he is not committed to any self-predication assumption.  Relying on contemporary work in linguistics and evidence from ancient texts, I develop a new interpretation of Plato’s use of predication that avoids the difficulties associated with self-predication.  I also have a current project in Modern philosophy, which focuses on the topic of the evil deceiver and free will in Descartes.