And Darcy knows exactly what she is about. My favorite bit is in chapter 8:

"Eliza Bennet," said Miss Bingley.... "is one of those young ladies who seek to recommend themselves to the other sex by undervaluing their own; and with many men, I dare say, it succeeds. But, in my opinion, it is a paltry device, a very mean art."

"Undoubtedly," replied Darcy, to whom this remark was chiefly addressed, "there is meanness in all the arts which ladies sometimes condescend to employ for captivation. Whatever bears affinity to cunning is despicable."

Miss Bingley was not so entirely satisfied with this reply as to continue the subject.