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The coexistence of these two sharply contrasting personalities within the same individual is as apparent in literature as in life: Dorian Gray, the handsome, witty, man-about-town, keeps his portrait hidden where no one can see it, for it bears all the features of his vicious secret life; Dr Jekyll and Mr Hyde are the same man, by turns respectable physician and monstrous ogre; the popular TV personality with the compassionate manner and caring smile can be a hysterical termagant at home with her family.
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Anthony Stevens (Jung: A Very Short Introduction (Very Short Introductions Book 40))