"In the early twentieth century the concepts of the preconscious and unconscious were made widely popular, especially in literary circles, by Freud, Jung, and their associates, mainly because of the sexual flavor they gave to them. By modern standards, Freud can hardly be regarded as a scientist but rather as a physician who had many novel ideas and who wrote persuasively and unusually well. He became the main founder of the new cult of psychoanalysis."