Themes
Themes are the fundamental and often universal ideas explored in a literary work.
The Duality of Human Nature
Dr. Jekyll and Mr. Hyde centers upon a conception of humanity as dual in nature, although the theme does not emerge fully until the last chapter, when the complete story of the Jekyll-Hyde relationship is revealed. Therefore, we confront the theory of a dual human nature explicitly only after having witnessed all of the events of the novel, including Hyde’s crimes and his ultimate eclipsing of Jekyll. The text not only posits the duality of human nature as its central theme but forces us to ponder the properties of this duality and to consider each of the novel’s episodes as we weigh various theories.
Jekyll asserts that “man is not truly one, but truly two,” and he imagines the human soul as the battleground for an “angel” and a “fiend,” each struggling for mastery. But his potion, which he hoped would separate and purify each element, succeeds only in bringing the dark side into being—Hyde emerges, but he has no angelic counterpart. Once unleashed, Hyde slowly takes over, until Jekyll ceases to exist. If man is half angel and half fiend, one wonders what happens to the “angel” at the end of the novel.
Perhaps the angel gives way permanently to Jekyll’s devil. Or perhaps Jekyll is simply mistaken: man is not “truly two” but is first and foremost the primitive creature embodied in Hyde, brought under tentative control by civilization, law, and conscience. According to this theory, the potion simply strips away the civilized veneer, exposing man’s essential nature. Certainly, the novel goes out of its way to paint Hyde as animalistic—he is hairy and ugly; he conducts himself according to instinct rather than reason; Utterson describes him as a “troglodyte,” or primitive creature.
Yet if Hyde were just an animal, we would not expect him to take