Posing the problem of linguistic competence involves analyzing or on the contrary assuming previous conceptions about many radical realities or at least it involves examining the concepts to be used to determine the degree of reality of them all. In order to avoid all possible beliefs on the blind assumption of concepts previous to the conception of linguistic competence (the concept of language, a language, speaking, the nature of competence, science, linguistics, etc.) it is necessary to make an initial foray into the problem.