I am Associate Professor of Philosophy at Georgetown University, where I have been a professor for twenty years. An Australian citizen, I received an honors degree in philosophy from the University of Melbourne in Australia and followed this with a Ph.D. at the University of Pittsburgh. My primary interests are in medieval philosophy, especially early thirteenth-century British philosophy, and even more particularly, Robert Grosseteste, with an emphasis on metaphysical issues.

I have an edition, with Rega Wood, of Richard Rufus of Cornwall's commentary on Aristotle De generatione et corruptione forthcoming from the British Academy, and have published numerous articles on medieval philosophy. I am currently completing a critical edition of Grosseteste's De libero arbitrio.

In addition to my interests in medieval philosophy, I enjoy keeping honey bees, growing fruit trees, and playing modern jazz double bass.