 In a more original way, in his work "Traité physique de la parole"( physical treatise of the word)- a variation of the previous title - he develops the notion that no motivated relation between the material sign and the expressed idea exists, as much as no real relation exists between body and soul.The word represents the opportunity for sign and meaning to meet, so far as if the soul hadn’t the use of the articulated body to produce sign, it would communicate in a much more immediate way from soul to soul, without having to go through the institution of the sign.The language used by human beings is therefore too complex to be explained by purely mechanical causes; I can deduce from it that the bodies I can see are also endowed with a soul.