The Role of Language in Intelligence

Daniel Dennett, in Jean Khalfa (ed.) What is Intelligence?, The Darwin College Lectures (Cambridge: Cambridge University Press, 1984).

Excerpt: We human beings may not be the most admirable species on the planet, or the most likely to survive for another millennium, but we are without any doubt at all the most intelligent. We are also the only species with language. What is the relation between these two obvious facts?