The chaper begins by looking at the nature of human language, starting from certain fundamental beliefs concerning the naturalness, power, and fuction of language and moving towards a more scientific analysis of human language as a system of arbitrary vocal signs, having the qualities of universality, innateness and creativity. Particular attention is given to the rule - governed nature of language. Language is also seen as uniquely human. The ambiguous term grammar involve deterioration in a language.
Finally, the dicipline of linguistics is examined, with its division in five components, corresponding to the levels of language: phonology, morphology, syntax, semantics and pragmatics.