Psychoanalysis ... should find a place among the methods whose aim is to bring about the highest ethical and intellectual development of the individual.

Letter number 80 to James Jackson Putnam, March 30, 1914, in James Jackson Putnam and Psychoanalysis: Letters between Putnam and Sigmund Freud, Ernest Jones, William James, Sandor Ferenczi, and Morton Prince, 1877-1917 (Harvard University Press: 1971), p. 170