Based on the analysis of Doreen Masey and those of Santiago Castro-Gómez, we will show a reflection on the geographies of the reason that will attempt to show the importance of thinking about the places from which knowledge is expressed and what they have in localized systems of statements, operating, training and transformation of discourses. To do this we divide the presentation into four parts. First, we will make a brief presentation of Foucault's questioning of the production of discourse. Second, we will take the contributions by Masey about a geography of knowledge production, then we will present the thesis by Castro-Gómez on "The hubris of the zero point" and the location of knowledge, and finally we will aim to reflect the contributions of our authors on the need to think about the places of enunciation of knowledge as a basis for the assertion of the epistemic variety.