First Published in 1999. This is Volume XVI of twenty-eight in the Psychoanalysis series. Written around 1939 the purpose of this book is not to show what is wrong with psychoanalysis, but through eliminating the debatable elements, to enable psychoanalysis to develop to the height of its potentialities; that psychoanalysis should outgrow the limitations set by its being an instinctive and a genetic psychology.