This book addresses the difficulties of the long journey of the young doctor physician experienced in the middle of the hospital mandarins to disturbing portraits. These confessions show the difficulty of medical exercise, too lonely, lies by omission of doctors and the eternal question facing the risky diagnosis of a disease. In contrast to the vision of any medical power, one perceives the vision neurologist who has a thin armamentarium for many diseases and passive expectation of worsening patients often silent ignorance to leave a slim hope. For the author, doubt on diagnoses of diseases and perversity are too heavy to carry in the solitude of his study.