■ « Scepticism and Sanity », in GINET C., SHOEMARKER S. (dir.), Knowledge and Mind, New York, Oxford University Press, 1983 ; « The So-called Picture Theory : Language and the World in the TLP », in GLOCK H.-J., ARRINGTON R. L. (dir.), Wittgenstein : A Critical Reader, Londres, Blackwell, 2001.
