Abstract
Addressing the problem of the subject and subjectivity and their possible link with the socio-political reflexion from the standpoint of the psychoanalytic theory of Jacques Lacan, supposes a break with the metaphysics of the modern subject that appears in the inaugural thought of Descartes. But also it initiates an implicit criticism and explicit almost immediately especially in German philosophy. With Lacan, this concept of subject and subjectivity is radically subverted by the construction of the notion of divided subject, subject at fault, which cannot account for its own determinations and much less from the historical conditions that determine their life experience. It is then possible, from psychoanalysis as a theoretical platform, not understood as a quasi-medical practice for the adaptation of pathologies of the individual but as a direct social clinical and theoretical practice.