Associate Professor of Philosophy
Official Student (i.e. Tutorial Fellow) of Christ Church


Research Interests
Ancient Philosophy

I am currently completing a book for Oxford University Press on Aristotle’s Metaphysics, Book Λ (XII), in which Aristotle discusses substance, form and matter, causation, teleology, theology, the nature of thought, and cosmology, and on articles on Aristotle’s scientific practice and his conception of metaphysicsFuture projects include a book on Plato’s Euthyphro and articles on various issues in Aristotle’s De Caelo.

I am General Editor of the Clarendon Aristotle Series, and joint Editor, with Julia Annas, of Oxford Aristotle Studies.

Edited Anthologies
1991  Lindsay Judson (ed.), Aristotle’s Physics: A Collection of Essays (Oxford)
2006  Lindsay Judson and Vassilis Karasmanis (eds), Remembering Socrates: Philosophical Essays (Oxford)

1983  ‘Eternity and Necessity in De Caelo I.12’, Oxford Studies in Ancient Philosophy 1, 217-55
1987  ‘God or Nature?’, in Richard Sorabji (ed.), Philoponus and the Rejection of Aristotelian Science (London)
1987  ‘Russell on Memory’, Proceedings of the Aristotelian Society 88, 65-82
1988  ‘La Bataille Navale d’Aujourd’hui: De Interpretatione 9’, Revue de Philosophie Ancienne 6, 5-37
1991  ‘Chance and “Always or for the Most Part” in Aristotle’, in Aristotle’s Physics: A Collection of Essays
1994  ‘Heavenly Motion and the Unmoved Mover’, in Mary Louise Gill and James Lennox (eds), Self-Motion from Aristotle to Newton (Princeton)
1997  ‘Aristotle on Fair Exchange’, Oxford Studies in Ancient Philosophy 15, 147-75
1998  ‘What Can Happen When You Eat Pungent Food’, in Nikolaos Avgelis and Filimon Peonidis (eds), Aristotle on Logic, Language and Science (Thessaloniki)
2000  ‘Formlessness and the Priority of Form: Metaphysics Zeta 7-9 and Lambda 3’, in David Charles and Michael Frede (eds), Aristotle’s Metaphysics Lambda: Symposium Aristotelicum (Oxford)
2005  ‘Aristotelian Teleology’, Oxford Studies in Ancient Philosophy 29, 341-66
2009  ‘John Lloyd Ackrill’ (biographical memoir), Proceedings of the British Academy 161, 3-16
2010  ‘Carried Away in the Euthyphro’, in David Charles (ed.), Definition in Greek Philosophy (Oxford)  
2015  ‘Aristotle’s Astrophysics’, Oxford Studies in Ancient Philosophy 49, 151-92
2016  ‘Aristotle, Metaphysics Theta 8 1050b6-28’, Phronesis 61, 142-59
2016  (forthcoming) Hypotheses in Platos Meno, Philosophical Inquiry
2017  (forthcoming) ‘Physics I.5’, in Diana Quarantotto (ed.), Aristotle’s Physics I: The Principles of Natural Things (Cambridge University Press)
2018  (forthcoming) ‘The Meno’, in Gail Fine (ed.), The Oxford Handbook of Plato, 2nd edition (Oxford University Press)