Han van Ruler is professor of Intellectual History of the Renaissance and the Baroque at Erasmus University Rotterdam. He is general editor of Brill's Studies in Intellectual History and scientific director of the Dutch Research School of Philosophy. Van Ruler co-edited the Dictionary of Seventeenth and Eighteenth Century Dutch Philosophers (Thoemmes, 2003) and has made numerous modern editions of seventeenth-century philosophical sources. He is presently preparing a book on Erasmus' impact on moral philosophy.