Despite the complexity and urgency of the resolution of the structural problems that face North African societies, they cannot save themselves a comprehensive understanding of their realities, including those inherent in the cultural and linguistic diversity. The major challenge of this issue concerns the regulation of the contradiction between, on the one hand, the centripetal trend which brings back plurality to singularity, diversity to unity and unity to uniqueness; and on the other hand, the centrifugal trend that claims an absolute and irreducible identity.