I was amazed at how Lady Catherine held off from haranguing Mrs. Bennet: "She entered the room with an air more than usually ungracious, made no other reply to Elizabeth's salutation, than a slight inclination of the head, and sat down without saying a word." And she never did say much to Mrs. Bennet.

I was rather fascinated by the things she DID say to Elizabeth, because every complaint she made actually applied to herself, and her own manner, but NOT to Elizabeth:

“Are you lost to every feeling of propriety and delicacy?”

"Because honour, decorum, prudence -- nay, interest, forbid it.”

"Obstinate, headstrong girl!”

"You have no regard, then, for the honour and credit of my nephew! Unfeeling, selfish girl!”

“You refuse to obey the claims of duty, honour, and gratitude.”