Inferring from Language

In the study of human thought there could hardly be a more fundamental con­ cern than language and reasoning. In the tradition of Western philosophy, humans are distinguished by their ability to speak and to think rationally. And language is often considered a prerequisite for rational thought. If psycholoQists, then, are ever to discover what is truly human about their species, they will have to discover how language is produced and understood, and how it plays a role in reasoning and other for