psychology. As long as psychology settled this question with the verbal explanation that the “psychic” is the “conscious” and that “unconscious psychic occurrences” are an obvious contradiction, a psychological estimate of the observations gained by the physician from abnormal mental states was precluded. The physician and the philosopher agree only when both acknowledge that unconscious psychic processes are “the appropriate and well-justified expression for an established fact.” The physician cannot but reject with a shrug of his shoulders the assertion that “consciousness is the indispensable quality of the psychic”; he may assume, if his respect for the utterings of the philosophers still be strong enough, that he and they do not treat the same subject and do not pursue the same science.