The Cartesian cogito is undoubtedly one of the most striking
formulations of modern subjectivity thought: for its power and impact it
opens the realm of subjectivity philosophies and, with them, a certain
way of thinking that forgot the primacy of language and the city and he dominated until the XX century the horizon of philosophy. It is against this metaphysics of disembodied subjectivity, of modernity, which tracks the development of science and reduces the world a table before the eyes that the post-Heideggerian hermeneutics philosophy rebels. This article tries to think the contribution of hermeneutic phenomenology of H.- Gadamer and P. Ricoeur for the new thinking of subjectivity and rationality, accentuating its practical and linguistics fundamental dimension.