In the first part, the article analyzes the Marxian critique of alienation, in its dual political and economic form. For Marx, individuals are alienated in both representative political democracy and money-based economics. In both cases, in fact, the individuals give up to master directly their social relationships, and rely on a medium that, in regulating their relations, makes itself independent of them and thus dominates them. In the second part, the article analyses the Marxian critique of human and citizen rights, to highlight both its strengths and weaknesses.