Since the man s perception and activity depends crucially on his mental concepts, his relations with the objective world are greatly affected by language. The mental development of an individual is only possible with the help of and through language. Language in its turn requires another individual, requires understanding. Language by its nature is a means to objectivize our subjective world. Mental concepts transformed into words come into the ownership of others.
Language needs two as sine qua non, though in reality it belongs to all mankind.
An individual understands oneself as long as he is understood by others. A thought in order to be understood needs another individual, who is equal to the speaker and yet is different. Being well aware of his limits, an individual has to regard the truth as something external to himself. One of the most powerful means of approximation to it is constant communication with others. V.Henry, Antinomies linguistiques, Paris, 1896.