This article will address descriptive and normative concepts vis-à-vis their inferential value and epistemic evolution within the social sciences. The analysis focuses mainly on the normative concept, which arises in the intersection between various disciplines of the social sciences, blending within itself a dialectic between the subjective and the objective, between the individual and the social. The descriptive concept – which acts as a link between logos qua language and the empirical reality – will have less elaborated analysis. The article’s purpose is convenient for readers acquainted with the field in question as well as those for whom the topic is less known. Indeed, the article is intended to address the above concepts from the point of view of the political scholar. However, during the research process, it was considered appropriate that these conceptions have an interdisciplinary heuristic reflection in order to be of value and interest to scholars of political science, philosophy, and law. As a first step, we will present in classical form the meaning and explanation of the concepts in question, based on linguistic and philosophical dictionaries. The article also focuses on the solid definition given to the concept of normativity – understood in legal terms – by Hans Kelsen through his idea of a Base Norm (Grundnorm) and his critique of Max Weber’s sociological conception of norms. Secondly, we will outline the dichotomy between the concepts of “is” and “ought” – the former analyzed by Kant as a hypothetical imperative, as a determinant of goals and actions based on desires and, the latter considered as a categorical imperative, as a normative determinant based on reason. Another dimension of normativity is seen from the perspective of analytical jurisprudence, the dialectic created between formalists and anti-formalists in the treatment of morality, both in subjective and social terms. Finally, the emphasis will be placed on normativity in politics and in spoken language, dimensions that define the normative approach.

Contemporary Philosophy