The article offers an original theoretical framework for the analysis of the notion of habitus throughout the history of ideas, as well as in the contemporary debate. According to the proposed approach, this notion works as a theoretical operator that mediates between a vast variety of polarized conceptual couples: to be/to have, potency/actuality, subject/object, inside/outside. Among those, a defining aspect of the notion of habitus is the tension between the domain of practices and the domain of things. The paper argues that many different uses of the notion of habitus in the Western tradition can be understood as different ways to balance the tension between these two structural elements. To prove this hypothesis, the analysis focuses o...