Mary: Oh, um, and if there's anyone who's able to help me clean out his house, please let me know.
Elliot: Ooh, you know I love to tackle clutter. We'll do it!
Mary: Oh, thank you.

Adult Sheldon: Dr. Sturgis was a wise man. It was a learning opportunity. And when the day comes that I'm wrong, I fully plan to admit it.

Ms. Hutchins: Sheldon, why aren't you in second period?
Sheldon: I'm working on this math problem.
Ms. Hutchins: I think you might be the first person in history who's ever cut class to do math.
Sheldon: The irony wasn't lost on me.

George Jr.: What's a math emergency?
George Sr.: That's when things don't add up. Oh, come on, guys. That was a good one.