This volume analyses ancient and medieval theories of intentionality in various contexts: perception, imagination, and intellectual thinking. It sheds new light on classical theories (e.g. by Aristotle and Thomas Aquinas) and examines neglected sources, both Greek and Latin. It includes contributions by J. Biard, M. Burnyeat, V. Caston, D. Frede, R. Gaskin, E. Karger, C. Michon, D. O'Meara, C. Panaccio, R. Pasnau, D. Perler, Ch. Rapp, P. Simons, R. Sorabji, and H. Weidemann.

Dominik Perler, Professor of Philosophy at the University of Basle (Switzerland), specializes in medieval and early modern philosophy. His publications include Der propositionale Wahrheitsbegriff im 14. Jahrhundert (1992), Repräsentation bei Descartes (1996), and Occasionalismus. Theorien der Kausalität im arabisch-islamischen und im europäischen Denken (with U. Rudolph, 2000).