Darcy is too proud of his heritage and Elizabeth is prejudiced towards him. How do they change at the end and what important lesson do they learn?

In the end, both Darcy and Elizabeth are forced to open their eyes to the truth, rather than what they want to see. They learns that appearances are deceiving, that gossip is wrong, and that pride is directly responsible for poor decisions. In the final chapters, Austen makes it extraordinarily clear that both characters have changed. Darcy's clear regard for the Gardiners is an external indication of his change, while Elizabeth's new timidity reveals her newfound shame. It is notable that Elizabeth becomes far less active in these final chapters, a shift that leads some critics to observe that the novel's second half is slower than the first. However, the reason for Elizabeth's more tempered demeanor is that she is no longer so quick to jump to conclusions.

In the end, both characters learn that class does not determine either goodness or virtue.