Almost more even than the extraverted is the introverted type subject to misunderstanding: not so much because the extravert is a more merciless or critical adversary, than he himself can easily be, but because the style of the epoch in which he himself participates is against him. Not in relation to the extraverted type, but as against our general accidental world-philosophy, he finds himself in the minority, not of course numerically, but from the evidence of his own feeling. In so far as he is a convinced participator in the general style, he undermines his own foundations, since the present style, with its almost exclusive acknowledgment of the visible and the tangible, is opposed to his principle. Because of its invisibility, he is obliged to depreciate the subjective factor, and to force himself to join in the extraverted overvaluation of the object. He himself sets the subjective factor at too low a value, and his feelings of inferiority are his chastisement for this sin. Little wonder, therefore, that it is precisely our epoch, and particularly those movements which are somewhat ahead of the time, that reveal the subjective factor in every kind of exaggerated, crude and grotesque form of expression. I refer to the art of the present day.
The undervaluation of his own principle makes the introvert egotistical, and forces upon him the psychology of the oppressed. The more egotistical he becomes, the stronger his impression grows that these others, who are apparently able, without qualms, to conform with the present style, are the oppressors against whom he must guard and [p. 498] protect himself. He does not usually perceive that he commits his capital mistake in not depending upon the subjective factor with that same loyalty and devotion with which the extravert follows the object By the undervaluation of his own principle, his penchant towards egoism becomes unavoidable, which, of course, richly deserves the prejudice of the extravert. Were he only to remain true to his own principle, the judment of ‘egoist’ would be radically false; for the justification of his attitude would be established by its general efficacy, and all misunderstandings dissipated.
–Carl Jung, Psychological Types