(D. Phil., University of Oxford). His work ranges broadly over philosophical problems of mind and language. Recent books include The Mystery of Consciousness (1997), Mind, Language and Society: Philosophy in the Real World (1998), Rationality in Action (2001), Mind (2004), and Liberté et Neurobiologie (2004). He teaches philosophy of mind, philosophy of language, and philosophy of social science; recent seminars topics include consciousness, free will, and rationality.