 Furthermore, any move against representational thinking impinges upon the identity of the subject. Where Kant founds the representational unity of space and time upon the formal unity of consciousness (Kant 1787, 135-137), difference re-distributes intuitions of past, present, and future, fracturing consciousness into multiple states not predicable of a single subject. Intensive qualities are individuating by themselves, says Deleuze, and individuality is not characteristic of a self or an ego, but of a differential forever dividing itself and changing its configuration (Deleuze 1994 [1968], 246, 254, 257). In Nietzschean fashion, the “I” refers not to the unity of consciousness, but to a multitude of simulacra without an identical subject for whom this multitude appears. Instead, subjects arise and multiply as “effects” of the intensive qualities saturating space and time. This leads Deleuze to postulate multiple faculties for subjectivity, which are correlates of the sensible insofar as it gives rise to feeling, thought, and action. “Each faculty, including thought, has only involuntary adventures,” he says, and “involuntary operation remains embedded in the empirical” (Deleuze 1994 [1968], 145). Subjectively, the paradox of the differential breaks up the faculties' common function and places them before their own limits: thought before the unthinkable, memory before the immemorial, sensibility before the imperceptible, etc. (Deleuze 1994, 227). This fracturing and multiplying of the subject, he notes, leads to the realization that “schizophrenia is not only a human fact but also a possibility for thought” (Deleuze 1994 [1968], 148), thus expanding the term into a philosophical concept, beyond its clinical application.