Theories in the modern age in philosophy, as well as in the discourse of the social sciences, are pervaded with the presuppositions of the dualisms of mind and world, theory and practice, private and public. These theoretical dualisms make it impossible to have an account of the interconnected nature of the experience of individuals and societies. The philosophical theoretical vocabulary to take account of the relations between these dualisms has been effaced with the legacy of Cartesian dualism. I argue that (...) through a conceptual analysis of the body, as has been posited by Maurice Merleau-Ponty, and the related concepts of habit, custom and labour, we can reclaim some concepts that allow a mediation of these dualisms. In this article, I make a conceptual analysis of the epistemic, metaphysical and social–political interrelations between these concepts and argue for the relational role they play in our philosophical theoretical discourse. (shrink)