The two competitive currents in French philosophy initiated by Jacques Derrida and Gilles Deleuze tackle the difference between empiricism and idealism in contrary motion. In Derrida, the move is toward a critique of representation. In Deleuze, it is toward recovery of the real. Nevertheless, this paper nominates their meeting in a kind of 'radical empiricism'. Both Derrida and Deleuze engage with empiricism at certain points in their work, although many who go by that label would be surprised to hear it.