Elizabeth was shocked to think that, however incapable of such coarseness of expression herself, the coarseness of the sentiment was little other than her own breast had harboured and fancied liberal.
– Jane Austen
Pride and Prejudice, Chapter 39. Elizabeth listens to Lydia call Wickham’s former girl Mary King a "nasty little freckled thing" and say that he never cared three straws about her. Elizabeth is shocked and reproaches herself for having similar uncharitable feelings. She sees others acting with a coarseness that she has been guilty of in her own thoughts. It is a moment of self-awareness for her, as her understanding and knowledge of herself continues to grow.