The general-attitude types, as I have pointed out more than once, are differentiated by their particular attitude to the object. The introvert's attitude to the object is an abstracting one; at bottom, he is always facing the problem of how libido can be withdrawn from the object, as though an attempted ascendancy on. the part of the object had to be continually frustrated. The extravert, on the contrary, maintains a positive relation to the object. To such an extent does he affirm its importance that his subjective attitude is continually being orientated by, and related to the object. An fond, the object can never have sufficient value; for him, therefore, its importance must always be paramount.
The two types are so essentially different, presenting so striking a contrast, that their existence, even to the [p. 413] uninitiated in psychological matters becomes an obvious fact, when once attention has been drawn to it. Who does not know those taciturn, impenetrable, often shy natures, who form such a vivid contrast to these other open, sociable, serene maybe, or at least friendly and accessible characters, who are on good terms with all the world, or, even when disagreeing with it, still hold a relation to it by which they and it are mutually affected.