Mary Louise Gill is Professor of Philosophy and Classics at Brown University. She is the author of
Aristotle on Substance: The Paradox of Unity (1989),
Unity,
Identity, and Explanation in Aristotle's Me
taphysics (co-edited with Theodore Scaltsas and David Charles, 1994),
Self-Motion: From Aristotle to Newton (co-edited with James G. Lennox, 1994), and
Plato: Parmenides (with Paul Ryan, 1996).
Pierre Pellegrin is Director of Research at the Centre National de la Recherche Scientifique in Paris. His authored works include Aristotle's Classification of Animals (1986), and Aristote: Le Philosophe et les Savoirs (2002).