"Come, come, Lucy, here's no one by--so a little less simplicity, with a grain or two more sincerity, if you please."
I love it when he "pretends to be affronted" when he hears of Mrs. Malaprops attraction to Sir Lucius:
"How! what tastes some people have! Why, I suppose I have walked by her window a hundred times!" (And she hasn't been "induced" by me!?)