Abstract
The article studies the shift of Enlightment in the interpretation of enjoyment, which led to the construction of a particular ethos/nomos enjoyment and transformation in the model of be-ing/thinking. Thus, constituted the transition from the metaphysics of mind, grounded by Des-cartes, to physic of body, presented by Marquis de Sade. This shift or meta/physical gap is carried out at the intersection of two lines: the reason and enjoyment. Given line of reason, the article specifically actualized line of enjoyment, allowing to explore the transformation of the identity of being and thinking which is fundamental to Western philosophy. It sets the place of enjoyment in Cartesian concept of the identity of being and thinking, and the distinc-tion of soul and body. Hence it formulates the maxim of the subject of cogito: it is in thinking that I enjoy being. Approach of Descartes is opposed by the materialistic definition of enjoy-ment and pleasure worked out by de Sade. This conceptualization of the enjoyment enables the transition to physics of body, which recognizes only bodily/physical being hypertrophi-cated by the imagination. Hence the Sadian subject imago constitutes the maxim: it is only by enjoying being that I think.