Abstract
This article explores the influence of Simmel and Pareto on the social theory of J. Freund (1921-1993). Recognized as an interpreter and promoter of the sociology of both authors in the French academic context of the last third of the past century, both play a fundamental role in the construction of his social philosophy, a central part of which is his theory of essences, developed especially in L’essence du politique (1965). However, this influence has not been yet sufficiently studied. This article proposes a preliminary approach, highlighting the presence of both authors in the definition of what I will be described here as Freundian “dialectical interactionism”, his methodological perspective for the study of dynamics and social equilibrium.