As a young man growing up near Basel, Jung was fascinated and disturbed by tales of Nietzsche's brilliance, eccentricity, and eventual decline into permanent psychosis. These volumes, the transcript of a previously unpublished private seminar, reveal the fruits of his initial curiosity: Nietzsche's works, which he read as a student at the University of Basel, had moved him profoundly and had a lifelong influence on his thought. During the sessions the mature Jung spoke informally to members of his inner circle about a thinker whose works had not only overwhelmed him with the depth of their...