Mandy: Hey, could you watch her for a little while?
Missy: I would, but I gotta get to the grocery store if dinner's gonna be ready.
George: Three-fifty.
Jim: Three hundred and fifty dollars for a dining room set? You must be crazy.
George: That's what you said about the jet ski, but I nailed it.
Jim: Well...
Missy: You guys having a good time?
George: Oh, yeah, great time.
Missy: [turns off TV] It's over.
George: Wha... Well, what about Showcase Showdown?

George: And Sheldon's fine. You know what he's like. If someone took him, I'm sure they'll bring him right back.

Georgie: A bill? Really?
George: Room and board, buddy.
Georgie: $50 a month for food?
George: The way you eat, I should've gone $50 a week.
Georgie: Laundry services?
George: Your poor mother has to touch your underwear.
Georgie: What's the $10 a month "peema" charge?
George: Oh, P-I-M-A, that's a "Pain in My Ass" tax. My way of getting compensated for you taking years off my life.

Georgie: You know what else is nice?
George: Hmm?
Georgie: I get to learn from all your parenting mistakes.
George: I'm starting to think letting you live this long was one of 'em.
Georgie: Like that. I'd never say something so awful to my kid. [George scoffs] Thanks, big guy.

Adult Sheldon: Heidelberg is considered one of the most beautiful cities in Germany. Heidelberg Palace, the Karl Theodor Bridge, the Schloss Schwetzingen. But I couldn't care less. The only sights I wanted to see were the looks of awe on the faces of my fellow students as I demonstrated my intellectual superiority.
Sheldon: Cylinders that are smaller than ten to the minus-35 meters. [all laugh] What's happening?
Professor Salzman: You don't laugh at people saying stupid things in Texas?
Sheldon: You're darn tootin' we do. So who goofed? [laughter]
Professor Salzman: You did, dummkopf.
Sheldon: Dummkopf? You're calling me a dummy?
Professor Salzman: Class, who knows where the dummkopf went wrong? [hands go up] Mr. Ziegler.
Mr. Ziegler: He forgot to consider the Calabi-Yau manifold.
Professor Salzman: Thank you, Mr. Ziegler.
Sheldon: Wait, what's the Calabi-Yau manifold? [laughter]
Professor Salzman: Dummkopf.
Adult Sheldon: I was quickly learning not all Germans were the warm, fun-loving people I was led to believe.

Sheldon: And then they laughed at me for not knowing something that they knew. Who does that?
Mary: You do.
Sheldon: Well, this is no time for a teachable moment. Your child is hurting.
Mary: Sorry. [taps Sheldon's shoulder] There, there.
Sheldon: I guess that'll do. Now, how about a hot beverage?

Sheldon: Professor Salzman, I just wanted to let you know that I studied up and am now well-versed in the Calabi-Yau manifold.
Professor Salzman: Okay.
Sheldon: It was never part of the curriculum at East Texas Tech.
Professor Salzman: East Texas Tech? Sounds charming.
Sheldon: It's actually quite humid. Regardless, I'm ready to reassert myself as class leader.
Professor Salzman: Your classmates are from some of the most elite universities in the world. There is no East MIT.
Sheldon: Well, I would have gone to a better school, but I was 11, which you have to admit is pretty impressive.
Professor Salzman: Sheldon, at some point we ask of the piano-playing dog not, "Are you a dog?" but, "Are you any good at playing the piano?"
Sheldon: Excuse me?