I would like to say in conclusion that Jung, by his “modifications” has furnished psychoanalysis with a counterpart to the famous knife of Lichtenberg. He has changed the hilt, has inserted into it a new blade, and because the same trademark is engraved on it he requires of us that we regard the instrument as the former one. On the contrary, I believe I have shown that the new theory which desires to substitute psychoanalysis signifies an abandonment of analysis and a secession from it. Some may be inclined to fear that this defection may be more unfortunate for the fate of psychoanalysis than any other because it emanates from persons who once played so great a part in the psychoanalytic movement and did so much to further it. I do not share this apprehension. Men are strong so long as they represent a strong idea. They become powerless when they oppose it. Psychoanalysis will be able to bear this loss and will gain new adherents for those lost. I can only conclude with the wish that the fates may prepare an easy ascension for those who found their sojourn in the underworld of psychoanalysis uncomfortable. May it be vouchsafed to the others to bring to a happy conclusion their works in the deep. ----- Footnote 1: “On Psychoanalysis.” Five lectures given on the occasion of the twentieth anniversary of Clark University, Worcester, Mass., dedicated to Stanley Hall. Second edition, 1912. Published simultaneously in English in the American Journal of Psychology, March, 1910; translated into Dutch, Hungarian, Polish and Russian. Footnote 2: Breuer and Freud, “Studien über Hysterie,” p. 15, Deuticke, 1895. Footnote 3: Zentralblatt für Psychoanalyse, 1911, Vol. 1, p. 69. Footnote 4: The Clinic of Psychiatry, Zürich. Footnote 5: Havelock Ellis, “The Doctrines of the Freudian School.” Footnote 6: G. Greve, “Sobre Psicologia y Psicoterapia de ciertos Estados angustiosos.” See Zentralblatt für Psychoanalyse, Vol. 1, p. 594. Footnote 7: The collected publications of these two authors have appeared in book form: Brill, “Psychoanalysis, its Theories and Practical Applications,” 1912, 2d edition, 1914, Saunders, Philadelphia, and E. Jones’s “Papers on Psychoanalysis,” 1913, Wood and Company, New York. Footnote 8: The first official recognition that psychoanalysis and dream interpretation received was extended to them by the Psychiatrist Jelgersma, rector of the University of Leyden, in his rectorship address February 1, 1914. Footnote 9: An English translation has just appeared in the Nervous and Mental Disease Monograph Series, No. 23. Footnote 10: Cf. “Der Wahn und die Träume” in W. Jensen’s “Gradiva.” Footnote 11: Rank, “Der Künstler,” analyses of poets by Sadger, Reik, and others, my little monograph on a Kindheitserinnerung des Leonardo da Vinci; also Abraham’s “Analyses von Segantini.” Footnote 12: A translation is in preparation. Footnote 13: