The present book elucidates and advances this thesis by (1) analyzing the structure of medical language, knowledge, and theories, (2) inquiring into the foundations of the clinical encounter, (3) introducing the logic and methodology of clinical decision-making, (4) suggesting comprehensive theories of organism, life, and psyche; of health, illness, and disease; of etiology, diagnosis, prognosis, prevention, and therapy, and (5) investigating the moral and metaphysical issues central to medical practice and research.