The text presents first arguments to demonstrate the broad assumption that the principle of arbitrariness of the linguistic sign of Ferdinand de Saussure, taken in its radicalism, and the proposition of Semiology, disciplinc to examine the consequences of the presence and insertion of thc sign in human life, they suggest a natural discursive epistemology. The immediate objectives of this article sought the first partial results: the demonstration of the radical nature of the Saussurean principle before readings that minimized, and tried to neutralize it, and the evidence that the semiology act thereof is a more communicative act of language. It is inescapable coercion of our apprehension and perception of the world. The methodology used in reasoning that is inspired by the epistemological reflections of the mathematician R. Thom: the stimulation of intuition in the search for new implied symmetry hidden in the phenomena and not yet conceptualized in the general field of the discipline undergoing. In this case, it is the new search for the epistemological power of S aussure's Semiology.