This article constitutes a part of the second chapter of our M.A. dissertation - The Free Act: considerations on the workers' politics - Faculdade de Filosofia, Letras e Ciências Humanas, Universidade de São Paulo (Faculty of Philosophy, Letters and Human Sciences, University of São Paulo). In this article, I try to show the impressive similarity between theoretical suppositions underlying a discourse that articulates a bourgeois conception of social relations, built for the control of the workers' class, and its supposed opponent, which intended to articulate a socialist conception and, explicity, was developing the marxist point of view. In order to attain this aim, I compare the speaches of Getulio Vargas (pronounced in the years of 1946 and 1947) with the discourses of Luiz Carlos Prestes (written in 1945). I conclude this exposition with a brief reflexion over the origin of these presuppositions in the womb of the international communist moviment.