ABSTRACT
The work of Morton Prince carries us a bit further, for he has made an intensive study in many patients of the unconscious mental processes actually coincident with conscious emotion, as revealed by hypnotic and similar technical methods. The value of his work on the unconscious lies not in his demonstration of it by inevitable inference (the psychoanalytic method), but in his demonstration of the thinking that goes on parallel with conscious mental operations, although totally beyond the reach of the subject’s introspection. Whatever one may think of his theories, Prince’s data cannot be neglected by anyone who wishes to formulate broad psychological principles. I should state at this point that, in addition to some familiarity with his writings, I have had the frequent privilege of discussing the phenomena of emotion with him both in person and by correspondence.
