As a young man, Freud worked in Brücke’s laboratory and almost discovered the neurone. He studied under Charcot in Paris, and formed the Vienna Psychoanalytic Society with Adler. Breuer was a close friend and collaborator, Mahler one of his patients, Jones his biographer, and Einstein a noted correspondent. He maintained an intense collaboration with Jung up to 1914, the pair travelling together to the U.S., but Freud thought America “a big mistake.” Rank joined his Wednesday discussion circle and became one of his closest collaborators. Breton visited him in Vienna, and tried his methods out on his own patients.