If the preliminary cathartic period is left on one side, the history of psychoanalysis falls, from my point of view, into two phases. In the first of these, I stood alone and had to do all the work myself: this was from 1895–96 until 1906 or 1907. In the second phase, lasting from then until the present time, the contributions of my pupils and collaborators have been growing more and more in importance, so that today, when a grave illness warns me of the approaching end, I can think with a quiet mind of the cessation of my own labors. For that very reason, however, it is impossible for me in this _Autobiographical Study_ to deal as fully with the progress of psychoanalysis during the second phase as I did with its gradual rise during the first phase, which was concerned with my own activity alone. I feel that I should only be justified in mentioning here those new discoveries in which I still played a prominent part—in particular, therefore, those made in the sphere of narcissism, of the theory of the instincts, and of the application of psychoanalysis to the psychoses. I must begin by saying that increasing experience showed more and more plainly that the Œdipus complex was the nucleus of the neuroses. It was at once the climax of infantile sexual life and the point of junction from which all of its later developments proceeded. But if so, it was no longer possible to expect analysis to discover a factor that was specific in the ætiology of the neuroses. It must be true, as Jung expressed it so well in the early days when he was still an analyst, that neuroses have no peculiar content which belongs exclusively to them, but that neurotics break down at the same difficulties that are successfully overcome by normal people. This discovery was very far from being a disappointment. It was in complete harmony with another one: that the depth psychology revealed by psychoanalysis was in fact the psychology of the normal mind. Our path had been like that of chemistry: the great qualitative differences between substances were traced back to quantitative variations in the proportions in which the same elements were combined.