This paper deals with the primary sources under an epistemology that submits the investigator and the research to a subject’s ‘disconstructior’ treatment: the sources, therefore, move from the old position of a "primacial" point to the new one of "relational" point. In respect of this movement, the language becomes an "intertextual" activity because contradiction shapes the meaning of the mutual dependence: the signification puts in motion the instability of the subject’s relationship with the object. Since the object is opened to the multiple approach of reality, it shapes the interdisciplinary relationship. So, some bright explanations have been coming to sight when Education, Pedagogy, Language, History are connected.
sources; primary sources; "primacial" point; relacional" point; disconstructive action; intertextuality; contradiction; signification; instability; interdisciplinarity