"One evening years after the rupture between Freud and Jung, the Swiss psychiatrist C. A. Meier spent an hour alone with Freud in his study at Berggasse 19. "There was one topic of conversation," Meier remembered. "Jung. Freud was full of questions about Jung, about his family, his life and what he was doing. Every conceivable question," Meier said. "Because he still cared." Meier would find the same anguish in Jung. "He didn't like to talk about Freud because it was so painful." Another Swiss analyst agreed. "The wound was always there, it never healed. It was a tragedy." The hours that...