2. I stated above that leaving the history of the preclassical logos in the shadows is bothersome for two reasons. The second reason, which I will adduce briefly before going on to Descartes, has to do with the profound link established by Foucault between the division, the dissen- sion, and the possibility of history itself. “The necessity of madness, throughout the history of the West, is linked to the deciding gesture which detaches from the background noise, and from its continuous monotony, a meaningful language that is transmitted and consummated in time; briefly, it is linked to the possibility of history.”