First, the importance of language in cognition is recognized. Nevertheless, this does not necessarily imply that the locus of thought is natural language (words, syntax, phonology). Then, difficulties with some of Carruthers’ hypotheses are stated: Is an account based on LFs capable of dealing with the complexities involved in what we call thought? Finally, mention of the issue of language production is made.

The nature of the relationship between language and thought has been quite elusive. We believe that its understanding is crucially dependent on the available notions of language and thought. Foundations of Language offers an unusually clear and complete account of both, providing a fruitful and much needed framework for future research. No doubt it will help us think better about these elusive complexities.