Sean Greenberg received his A. B. in French and philosophy from Amherst College in 1994 and his Ph.D. in philosophy from Harvard University in 2000. He taught at Johns Hopkins University from 2000-2007 before moving to the University of California, Irvine, where he is currently an Assistant Professor of Philosophy. His research focuses on early modern moral psychology, in particular, on early modern conceptions of the will, human freedom, and the passions. He has published articles on these and other topics in Descartes, Malebranche, Leibniz, Hume, and Kant. He is currently working on two long-term projects: the one treats early modern treatments of the will and human freedom from Hobbes to Kant; the other articulates a systematic interpretation of the philosophy of Malebranche. A translation of Leibniz’s Theodicy, undertaken collaboratively by him and R. C. Sleigh, Jr., will be published in both scholarly and student editions by Oxford University Press.

Dan Kaufman is Associate Professor of Philosophy at the University of Colorado, Boulder. He has published a bunch of stuff in the history of seventeenth-century philosophy, especially on metaphysical issues in Descartes, Locke, and Boyle. He is the editor of the forthcoming Routledge Companion to Seventeenth Century Philosophy

James Harris has taught philosophy at St Andrews since 2004. He is the author of *Of Liberty and Necessity: The Free Will Debate in 18th-Century British Philosophy* (Oxford, 2005), and has edited (with Knud Haakensson) Reid's *Essays on the Active Powers of Man* for the Edinburgh Edition of Thomas Reid (Edinburgh, 2010). He is writing an intellectual biography of Hume for Cambridge University Press.

Rebecca Copenhaver received her Ph.D from Cornell University in 2002. She is an associate professor of philosophy at Lewis & Clark college in Portland, Oregon. She works primarily on eighteenth century British philosophy, in particular philosophy of mind. Her work has focused especially on Thomas Reid and perception. She also works on nineteenth and twentieth century Italian philosophy with Brian P. Copenhaver (UCLA) with whom she has written a book that will be released this winter: From Kant to Croce: Modern Philosophy in Italy 1800 - 1950 (University of Toronto Press).

Stephen Engstrom is Professor of Philosophy at the University of Pittsburgh. He is co-editor (with Jennifer Whiting) of Aristotle, Kant, and the Stoics: Rethinking Happiness and Duty (Cambridge, 1996) and author of The Form of Practical Knowledge: A Study of the Categorical Imperative(Harvard, 2009).

Helen Beebee has been a Professor at the University of Birmingham since 2005, where she is currently Head of the School of Philosophy, Theology and Religion. She's previously taught at Manchester, St. Andrews and Edinburgh Universities and University College London, and was a postdoc at ANU. Her research encompasses a range of related topics in metaphysics, epistemology and the history of philosophy, and mostly engages with issues relating to ‘Humeanism’. She's worked recently on freedom of the will (defending compatibilism), causation and laws of nature, natural kinds, the problem of induction (in connection with a Humean account of laws), and Hume himself (in particular, developing a ‘projectivist’ interpretation of his work on causation).