 Daniel Dennett, a student of Quine's, falls into this category, as does Stephen Toulmin, who arrived at his philosophical position via Wittgenstein, whom he calls "a pragmatist of a sophisticated kind" (foreword for Dewey 1929 in the 1988 edition, p. xiii).Another example is Mark Johnson whose embodied philosophy (Lakoff and Johnson 1999) shares its psychologism, direct realism and anti-cartesianism with pragmatism.Conceptual pragmatism is a theory of knowledge originating with the work of the philosopher and logician Clarence Irving Lewis.