Michel Tournier's novel Friday is the subject of an important essay of Deleuze's, in which he presents the concept of the ‘a priori Other’. Alice Jardine and Peter Hallward have offered critiques of Deleuze via readings of this essay, but neither takes into consideration the full significance of Tournier's novel or Deleuze's commentary. Jardine and Hallward provide divergent and only partial perspectives on Deleuze. If there are several Deleuzes, each defined by a critical point of view, there is also a (...) single Deleuzian problem that informs the Tournier essay and Deleuze's thought as a whole. (shrink)