Dr P. J. E. Kail is University Lecturer in the History of Modern Philosophy, University of Oxford and Fellow and Tutor in Philosophy at St Peter's College, Oxford. He is co-editor with Marina Frasca-Spada of Impressions of Hume (2005) and author of Projection and Realism in Hume's Philosophy (2007).Olga Palagia is Professor of Classical Archaeology at the University of Athens, Greece. A member of the committee for the restoration of the Acropolis monuments and Fellow of the Society of Antiquaries, among many other distinctions, she is editor, most recently, of Greek Sculpture: Function, Materials, and Techniques in the Archaic and Classical Periods.