""The term Inferior Function is used to denote the function that lags behind in the process of differentiation. Experience shows that it is practically impossible, owing to adverse circumstances in general, for anyone to develop all of his psychological functions simultaneously. The demands of society compel a man to apply himself first and foremost to the diffferentiation of the function with which he is best equipped by nature, or which will secure him the greatest social success. As a general rule a man identifies more or less completely with the most favored and hence the most developed function. It is this that gives rise to psychological types. As a consequence of this one-sided development, one or more functions are neccessarily retarded. These functions may properly be called inferior in a psychological, not a psychopathalogical sense, since they are in no way morbid but merely backward as compared with the favored function. Although the inferior function may be conscious as a phenomenon, its true significance nevertheless remains unrecognized. It behaves like many repressed or insufficiently appreciated contents, which are partly conscious and partly unconscious, just as, very often, one knows a certain person from his outward appearance but does not know him as he really is." C. G. Jung (1934). Psychological Types (pages 450-451)"