Abstract
Carruthers offers a refreshing piece of “substantive philosophy.” Going beyond the limitations of pure analysis, he adopts a methodology which is one part analysis, one part empirical data, and a heavy dose of inference to the best explanation. The overarching goal is to advance the commonsense—yet unfashionable—thesis that natural language is the primary medium of thought, and to defend the related cognitive conception of NL. In particular, Carruthers argues that imaginative phonological representations of “inner speech” are constitutive of conscious thoughts, and that thinking involves operations on such symbols. While there is still a role for mentalese cognition, such thinking is always unconscious, and probably of limited innate conceptual resources. The weak thesis is that, of natural necessity, all conscious propositional thought requires NL. The strong thesis is that, of natural necessity, distinctively human thoughts can only be tokened in natural language—hence even much of our unconscious thinking occurs in English.