What role does language play in our lives? Investigation of language functions is important on its own terms; in addition it is impossible to make progress on the topic of language evolution without a clear sense -- however speculative-- on the adaptive aspect of functionality of language in human society. Charles Darwin, for example, suggested the following: "As the voice was used more and more, the vocal organs would have been strengthened and perfected through the principle of the inherited effects of use...but the relation between the continued use of language and development of the brain, has no doubt been far more important....we may confidently believe that the continued use and advancement of this power would have reacted on the mind itself, by enabling it and encouraging it to carry on long trains of thought." Christian Butler has this to say, “I believe that all human functions the gift of speech is the most miraculous and that if speech were to stop all civilized living would suddenly vanish”. Speech is the precursor of language, therefore, if there is no speech there is no language.