The Lü Boshe Problem: Why an Unbreakable Character Might Just Be an Untested One

In the fourth chapter of Romance of the Three Kingdoms, the young Cao Cao, fleeing the tyrant Dong Zhuo after a failed attempt to stab him, takes shelter with Lü Boshe, an old friend of his father’s. In the night he hears what sounds like a blade being sharpened and voices saying “tie it up first, then kill it.” He panics and kills the whole household, and only then finds the pig they had tied up to slaughter for his supper. Riding away, he meets Lü Boshe himself, returning from an errand with wine, and kills him as well, reasoning that a man whose family has just been murdered cannot be left alive to talk. When his companion, appalled, asks how he could do it knowing it was wrong, Cao Cao answers with the line the novel made famous: 宁教我负天下人，休教天下人负我, “better that I betray the whole world than let the world betray me.”

The history behind the scene is thinner and more interesting than the novel. The dagger plot against Dong Zhuo is the novel’s invention. The killings at Lü Boshe’s house are not, quite. Pei Songzhi’s fifth-century commentary on the Records of the Three Kingdoms preserves three early versions, and they disagree. In the Weishu, Lü Boshe’s sons and their guests try to rob Cao Cao, and he kills several of them in self-defense. In the Shiyu, the family receives him courteously, but Cao Cao, conscious of having defied Dong Zhuo’s orders, suspects a plot and kills eight people in the night. In Sun Sheng’s Zaji, he hears the clatter of their cooking vessels, takes it for preparations to seize him, and kills them. Afterward, 凄怆, grief-stricken, he says 宁我负人，毋人负我, “better that I wrong others than that others wrong me.” The novel took the most damning version, added the pig and the second killing, and enlarged “others” into “the whole world.” Even in its earliest form, though, the sentence is spoken in anguish, by a man who has just done something he cannot undo. What the novel sharpens is the hinge itself: one night, one sound in the dark, and a man who comes out the other side of it changed.

Guan Yu receives the opposite treatment. Captured by Cao Cao after Liu Bei’s forces scatter, he is offered rank, wealth, a famous horse and every inducement a defector could want, and his loyalty to Liu Bei holds through all of it. In the end he leaves Cao Cao’s court to rejoin a lord who, for all he knows, may already be dead. His circumstances do not survive the ordeal unchanged: his allegiance, his household and his location all shift. But the quality the novel cares about, his 义, the bond of loyalty, comes out as it went in. Two men, two complete ruptures of circumstance. One emerges the same. The other emerges as someone his own companion barely recognizes.

Side by side, the two men form a natural experiment on what keeps a person the same over time. Guan Yu’s case looks like strong evidence for a Lockean, psychological-continuity view of personal identity: strip away everything external, name, allegiance, comfort, and the self survives as long as its defining commitment does. Cao Cao’s case looks like evidence against the view that bodily or narrative continuity is enough, since nothing about his body, his name or his place in the story breaks, and yet the reader is meant to see a different man ride out of that farmhouse than rode in.

It is worth asking, though, whether the two men differ in kind or only in what they were asked to withstand. Guan Yu’s loyalty is tested against wealth, comfort and status, and holds. The novel never puts it in a moment when loyalty and survival collide in the dark, with no time to think and every reason to believe his own life is at stake. Cao Cao’s idealism gets that moment. The scene at Lü Boshe’s house is not principle worn down by many small compromises. It is principle meeting a single moment of terror with no room for deliberation, and failing within a minute. Nothing guarantees that Guan Yu’s 义 would have survived that particular pressure better. The novel’s evidence is narrower than a contrast between a strong core and a weak one. One man’s commitments were tested against comfort and held, and the other’s were tested against sudden fear of death and did not. The conclusion is much less comfortable, because it suggests the difference between a Guan Yu and a Cao Cao may not be a fact about who each essentially is. It may be a fact about which room each happened to be locked in.

A companion piece on this site, The View from Inside the Mountain, reaches a similar suspicion about the self by another route, through exile and Chan Buddhism rather than a farmhouse at night, and arrives at a conclusion Locke would recognize and resist in equal measure: that the fixed self everyone assumes lies steady beneath circumstance may not be fixed at all. Guan Yu never learned what he would have done in that farmhouse. Neither has anyone who reads about him, and the reader may wonder how confidently they would answer the same question about themselves.