This book uses a neo-Aristotelian framework to examine human subjectivity as an embodied being. It examines the varieties of reductionism that affect philosophical writing about human origins and identity, and explores the nature of rational subjectivity as emergent from our neurobiological constitution. This allows a consideration of the effect of neurological interventions such as psychosurgery, neuroimplantation, and the promise of cyborgs on the image of the human. It then examines multiple personality disorder and its implications for narrative theories of the self, and explores the idea of human spirituality as an essential aspect of embodied human subjectivity.