Articulate human speech evolved in the processes of labour . Human thought and consciousness have the quality of abstract thinking , i.e. , a generalised reflection of reality in concepts , expressed in words . This capacity for abstract thought made it possible to express an idea , a sum of impressions in words , and with their aid man could inform other human beings of his impressions . However , this ability to communicate his thoughts to another human being through the aid of words was insufficient to stimulate speech . What was lacking was the necessity to communicate one’s thoughts to another . This necessity arose and developed in the process of man’s conscious labour . Labour was always a social activity . The work of a single human being was an integral part of the life of the human community . The unity of a commune of human beings in productive labour resulted in the fact that the individual in his mind , thoughts and actions regarded himself as a member of the commune , as subservient to it . That is why in the process of collective labour people felt the need to com municate with each other , to speak to each other . In the beginning , various shouts and cries used in the process of labour and arising from various actions were the sole means of communication . These cries gradually became established and remembered . This , in turn , brought about a change in the corresponding human organs . Under the in fluence of the pressing need to communicate in the process of common labour , the undeveloped throat was gradually transformed into an organ capable of producing articulate sounds . Thus , as a result of collective labour over a great period of time , articulate speech gradually evolved as a means of exchanging thoughts , as a means of human associa tion . Speech was of tremendous significance in the further development of society , since it helped to unite man’s efforts in labour as well as in organising collective labour ; speech made it possible for man to retain and pass on to coming generations his labour experience . Since the history of primitive society is a history of small , isolated human communities , the language of each such com munity developed independently and was unlike the language of other communities .

