Vanity and pride are different things, though the words are often used synonymously.

Mary Bennet, the plain, bookish middle sister of the Bennet family, delivers a definition that the novel proceeds to test across every major character and relationship. Speaking at Lucas Lodge the morning after the Meryton assembly, she declares: "Pride relates more to our opinion of ourselves, vanity to what we would have others think of us." The remark is prompted by a conversation in which Elizabeth has just said she could forgive Darcy's pride if he had not mortified hers, and Charlotte Lucas has defended Darcy's pride as a natural consequence of his family and fortune. Mary's pedantic tone—she "piqued herself upon the solidity of her reflections"—makes the speech sound like a schoolroom recitation, but the distinction she draws is anything but trivial. It provides a framework for understanding the central flaw of each protagonist and the arc of their transformation.

The Distinction in Action: Darcy and Elizabeth

Darcy himself, in a later conversation at Netherfield, confirms the hierarchy Mary has proposed. When Elizabeth accuses him of having no defects, he replies, "Yes, vanity is a weakness indeed. But pride—where there is a real superiority of mind, pride will be always under good regulation." He claims for himself a pride grounded in genuine merit, while dismissing vanity as a mere weakness. Elizabeth, however, turns his own words against him: she has already heard him boast of his "implacable resentment" and his unforgiving temper, and she will later, in the wake of his first proposal, reflect on "his pride, his abominable pride" as the quality that most offends her. Yet the novel ultimately vindicates the distinction Mary has drawn. Darcy's pride, though initially expressed as haughty disdain, is shown to have a substantive basis: he is a generous landlord, a devoted brother, and a man capable of profound self-correction. His famous letter to Elizabeth reveals that his interference in Bingley's courtship of Jane was motivated not by vanity but by a genuine—if mistaken—conviction that Jane did not return Bingley's affection. Elizabeth, by contrast, must confront her own vanity: she admits, after reading Darcy's letter, "Pleased with the preference of one, and offended by the neglect of the other, on the very beginning of our acquaintance, I have courted prepossession and ignorance, and driven reason away." Her prejudice against Darcy was fed by the flattering attentions of Wickham, whose easy manners appealed to her vanity, and she later acknowledges that "vanity, not love, has been my folly."

The Failure of the Distinction in the Bennet Marriage

The distinction between pride and vanity also illuminates the disastrous marriage of Mr. and Mrs. Bennet. Mr. Bennet, who married for youth and beauty, retains a kind of intellectual pride that finds amusement in his wife's folly: "To his wife he was very little otherwise indebted, than as her ignorance and folly had contributed to his amusement." His pride is a solitary, self-sufficient quality that isolates him from genuine domestic affection. Mrs. Bennet, by contrast, is all vanity: her entire existence is oriented toward what others will think, and her "business of her life was to get her daughters married; its solace was visiting and news." She has no inner standard of worth; her happiness depends entirely on external display and social triumph. The novel suggests that a marriage built on one partner's sterile pride and the other's empty vanity is a recipe for mutual contempt.

Lydia and the Collapse of Both

Lydia Bennet represents the complete absence of either pride or vanity in any meaningful sense. She is governed by pure, unreflecting impulse. Her elopement with Wickham is not the result of vanity—she does not care what the world thinks—nor of pride, for she has no sense of her own worth to defend. She is, as Elizabeth bitterly reflects, "lost to everything but love of him" and later, after the marriage, remains "untamed, unabashed, wild, noisy, and fearless." Lydia's behavior is the negative proof of Mary's maxim: without either pride or vanity to regulate conduct, a person becomes a danger to herself and her family.

Darcy's Self-Examination and the Resolution

In the climactic scene of his second proposal, Darcy himself adopts the language of Mary's distinction to describe his own moral education. He tells Elizabeth, "I have been a selfish being all my life, in practice, though not in principle. As a child I was taught what was right, but I was not taught to correct my temper. I was given good principles, but left to follow them in pride and conceit." He distinguishes between the principles he held (a form of pride in his own rectitude) and the selfishness of his actual conduct (a form of vanity in his own superiority). Elizabeth's rejection, he says, "properly humbled" him. The novel thus completes the arc that Mary's schoolroom definition began: pride, when it is grounded in genuine worth and tempered by self-knowledge, can be a virtue; vanity, the craving for the applause of others, is always a weakness. The two protagonists, by learning to distinguish between them in themselves, become worthy of each other.