<p>This two volume Supplement to the <em>Bulletin of the Institute of Classical Studies</em> represents the proceedings of a conference held at the Institute on 27-29 June, 2002 in honour of Richard Sorabji.</p><p>These volumes, which are intended to build on the massive achievement of Professor Sorabji’s <em>Ancient Commentators on Aristotle</em> series, focus on the commentary as a vehicle of philosophical and scientific thought.</p>