Discrimination is the sine qua non of cognition. But discrimination means splitting up the contents of consciousness into discrete functions. Therefore, if we wish to define the psychological peculiarity of a man in terms that will satisfy not only our own subjective judgment but also the object judged, we must take as our criterion that state or attitude which is felt by the object to be the conscious, normal condition. Accordingly, we shall make his conscious motives our first concern, while eliminating as far as possible our own arbitrary interpretations.