Nicolas Jolley is Professor of Philosophy at the University of California, San Diego. His publications include The Light of the Soul (1990), The Cambridge Companion to Leibniz (editor, 1995), and Nicolas Malebranche: Dialogues on Metaphysics and on Religion (co-edited with David Scott, 1997). He is also the editor of the forthcoming Oxford Philosophical Texts edition of Locke's Essay Concerning Human Understanding.