James McGilvray is Professor of Philosophy at McGill University, Montréal. He has written a general introduction to Chomsky's work (Chomsky, 1999) and edited and contributed to The Cambridge Companion to Chomsky (2005) and the second and third editions of Chomsky's seminal Cartesian Linguistics (2002 and 2009), with Cambridge. He has also published several articles on the philosophies of language and mind that defend in various ways the methods for the study of language and mind developed and endorsed by Chomsky and other internalist 'biolinguists'.