Dr Jekyll and Mr Hyde Stevenson uses the duality of Jekyll and Hyde to argue that every human being contains both good and evil, and that the attempt to separate these two natures — rather than accepting and managing them — leads inevitably to self-destruction.
Point 1
Jekyll's experiment is motivated by his recognition that man possesses a dual nature, and his desire to liberate each side from the other reflects a fundamental misunderstanding of human identity.
“man is not truly one, but truly two” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The declarative statement presents duality as an inescapable truth of human nature, not merely Jekyll's personal experience — Stevenson universalises the conflict between good and evil within every individual.
- The adverb 'truly' repeated twice gives the statement a tone of scientific certainty, reflecting Jekyll's belief that he has made a rational, empirical discovery — yet the disastrous consequences suggest his understanding is fatally incomplete.
- This reflects late-Victorian anxieties about Darwinian evolution: if humanity evolved from animals, then a bestial nature must still lurk beneath the civilised surface, waiting to re-emerge.
“I learned to recognise the thorough and primitive duality of man” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The adjective 'primitive' suggests that duality is not a modern condition but something ancient and fundamental — it predates civilisation and cannot be eliminated by it.
- The verb 'learned' implies a process of painful discovery, positioning Jekyll as a tragic figure whose intellectual curiosity leads him to a truth he cannot control.
- Stevenson uses Jekyll's confession to critique the Victorian belief that respectability could suppress the darker aspects of human nature — the 'primitive' self will always reassert itself.
Point 2
Hyde is presented as physically smaller and deformed, suggesting that Jekyll's repressed evil side has been stunted by years of suppression yet remains dangerously potent.
“Mr Hyde was pale and dwarfish, he gave an impression of deformity without any nameable malformation” [Narrator] Chapter 4: The Carew Murder Case
- The paradox of 'deformity without any nameable malformation' creates an uncanny effect — Hyde's evil is felt instinctively rather than rationally identified, reflecting the Gothic tradition of the monstrous Other.
- The adjective 'dwarfish' suggests that evil, while powerful, has been kept small by years of repression — Hyde is the underdeveloped side of Jekyll's personality, which makes his violence all the more shocking.
- Stevenson draws on physiognomy and degeneration theory, popular in the 1880s, which held that moral corruption would manifest as physical abnormality — yet the inability to name the deformity undermines the pseudo-science.
“the man seems hardly human! Something troglodytic” [Mr Utterson] Chapter 2: Search for Mr Hyde
- The word 'troglodytic' — meaning cave-dwelling — is a direct allusion to pre-evolutionary humanity, linking Hyde to Darwinian ideas about regression to a more primitive state.
- Utterson's struggle to articulate what is wrong with Hyde ('seems hardly human') mirrors the broader difficulty Victorian society had in confronting the irrational and the uncivilised within itself.
- The exclamatory tone reveals Utterson's shock and revulsion, breaking his characteristic composure and suggesting that Hyde's presence disrupts the rational, ordered world that Utterson represents.
Point 3
The physical transformation between Jekyll and Hyde dramatises the instability of identity, showing that the boundary between the respectable self and the monstrous self is terrifyingly permeable.
“I felt younger, lighter, happier in body; within I was conscious of a heady recklessness” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The list of comparative adjectives — 'younger, lighter, happier' — presents the release of evil as physically pleasurable, suggesting that repression itself is a burden and that vice offers a seductive liberation.
- The noun 'recklessness' foreshadows the escalating violence to come, while 'heady' implies intoxication — Hyde is an addiction that Jekyll cannot resist despite knowing the consequences.
- Stevenson implies that Victorian moral codes, by demanding constant self-denial, actually intensify the desire for transgression — the stricter the repression, the more exhilarating the release.
“I was slowly losing hold of my original and better self, and becoming slowly incorporated with my second and worse” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The repetition of 'slowly' creates a creeping, inexorable rhythm that mirrors Jekyll's gradual loss of control — the transformation is not sudden but a steady erosion of identity.
- The passive construction 'becoming incorporated' suggests that Jekyll is no longer the agent of change but its victim — Hyde is consuming him from within.
- The moral vocabulary of 'better' and 'worse' reveals that Jekyll still categorises his two selves hierarchically, yet his inability to maintain the distinction proves that such neat moral binaries are unsustainable.
Point 4
The novella's conclusion demonstrates that the attempt to divide the dual self ends in annihilation, as neither Jekyll nor Hyde can exist independently.
“the doom that is closing on us both has already changed and crushed him” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The pronoun 'us both' is significant — Jekyll acknowledges that he and Hyde share a single fate, proving that duality cannot be resolved through separation but only through mutual destruction.
- The verb 'crushed' conveys the overwhelming, inescapable force of the consequences, while 'doom' elevates the narrative to a tragic register, presenting Jekyll's fall as inevitable and predetermined.
- Stevenson suggests that the Victorian project of dividing the self into a public respectable persona and a private sinful one was always doomed to collapse under its own contradictions.
“Will Hyde die upon the scaffold? or will he find courage to release himself at the last moment? God knows; I am careless” [Dr Jekyll] Chapter 10: Henry Jekyll's Full Statement
- The rhetorical questions reveal Jekyll's complete loss of agency — he can no longer predict or control what Hyde will do, even though they share the same body.
- The adjective 'careless' is devastating in context: Jekyll has reached a state of nihilistic exhaustion where even the manner of his own death no longer matters to him.
- The invocation of 'God' in the final statement of a man destroyed by science creates a poignant irony — Jekyll, who sought to transcend moral limits through chemistry, returns to religious language in his despair.
Dr Jekyll and Mr Hyde — Duality — GCSE Literature Revision