Serena van der Woodsen: Oh ok, let's get one thing straight: our parents may be insisting on blending our households but I am not your sister. I do not share any of your DNA, nor do I ever wish to.Chuck Bass: Then I suggest you get new hand towels.
Serena van der Woodsen: Does he even know that you and Nate broke up?Blair Waldorf: Have you not told him?Serena van der Woodsen: It's not like we stay up at night, braiding each other's hair and having heart-to-hearts.
Dan Humphrey: Blair... Say life is giving you signs, and you're ignoring them because you're afraid of the thing they're signaling you to do. But-but then-but then you think, what if these signs are here for a reason and-and ignoring them just makes me a coward?Blair Waldorf: Signs are for the religious, the superstitious, and the lower class. I don't believe in them and neither should you.
Blair Waldorf: How could you do this to me? Just because I didn't give your geriatric boyfriend a seat doesn't mean you had to tell Sage to sabotage my show.Serena van der Woodsen: Save it, Blair! You were so upset that I care more about Steven then your show that you had to destroy my relationship.Blair Waldorf: I didn't tell her to take off her dress in front of all of New York City on that fashion runway. You did.Serena van der Woodsen: No, I didn't. I would rather avoid the child pornography charges.Blair Waldorf: Well, if I didn't tell her to take off the dress and you didn't tell her to take off the dress, then who did?Sage Spence: Nobody. I happened to like the underwear more.