Meemaw: Everybody gets fired for something eventually.
Sheldon: For being too good at their job?
Meemaw: Well, Moon Pie, sometimes you just get too excited about sharing the facts in your head.
Sheldon: But learning facts is the ant's pants. Which is the Australian derivation of the bee's knees. See, you just learned something. And wasn't that the cat's pajamas?

Ms. MacElroy: Now, can anyone tell me why Melville shifts the narrative voice from Ishmael to Ahab? [Ms. MacElroy waits for somebody else to raise their hand] Sheldon.
Sheldon: I have a tummyache. I'd like to see the nurse.
Derek: A "tummyache"?
Sheldon: Yes, Derek, I have a tummy and it aches. Ergo, tummyache.
Derek: "Ergo"?
Sheldon: It's Latin, Derek.
Ms. MacElroy: Go to the nurse.
Sheldon: And to answer your question, the shifting point of view grants the reader a broader perspective of events than typically allowed by first-person narration.
Ms. MacElroy: Where were we?
Sheldon: And "ergo" is Latin for "hence," Derek.

Pastor Jeff: Come on up here, Sheldon. Let's hear what you got.
Sheldon: I've spent the last week studying what people believe, and I've come to a conclusion.
Pastor Jeff: And what's that?
Sheldon: I'm starting my own religion.
Pastor Jeff: I'm sorry, what?
Sheldon: I'm calling it Mathology. It's based on a universal binary system.
Pastor Jeff: That's terrific, Sheldon, but this is a Baptist Sunday school.
Sheldon: I know, I'm here to convert everybody. Any takers?
Pastor Jeff: Okay. Let's go have a talk with your mom.
Sheldon: The only sin in Mathology is being stupid.

Mary: Too bad. We are going.
Sheldon: Class is starting tomorrow. I'm not going anywhere.
Mary: Sheldon, do not argue with me. You are going home.
Sheldon: Mom, the people of Germany are obsessed with rules and devoid of humor. I am home.

Adult Sheldon: Presenting... "Sheldon Cooper's Top Five Sources of News From My Childhood". Number five: Star Trek Fan Club Magazine.
Sheldon: Mom, DeForest Kelley's favorite episode is "The Empath."
Mary: Good to know.
Adult Sheldon: Number four: the Weather Cube from RadioShack.
Man: [from device] The humidity is 90% with a dew point of 79.5 degrees.
Sheldon: Mom! The dew point is 79.5 degrees.
Mary: [o.s.] Okay.
Adult Sheldon: Number three: The MacNeil/Lehrer NewsHour. Such a great theme song.
Sheldon: [hums] Buh-buh-bum.
Adult Sheldon: Number two: Meemaw after a few beers.
Meemaw: It took a while, but we finally picked a new name for my bowling team: The Ball Busters.
Sheldon: Hey, Mom. Guess what Meemaw named her bowling team? The Ball...
Adult Sheldon: And the number one source of news from my childhood: the bulletin board at the train store. News about trains in a store full of trains. Yummy.
Sheldon: How did this not make The MacNeil/Lehrer NewsHour?

Meemaw: Alls I'm saying is people aren't always in the mood.
Sheldon: Well, they should be. I'm happy to learn any fact at any time.
Meemaw: Is that so?
Sheldon: Yes.
Meemaw: Grab my knitting bag.
Sheldon: I don't recommend driving while knitting. Your reflexes aren't what they used to be.
Meemaw: Just look in the bag! Did you know that there are three different kinds of yarn?
Sheldon: I didn't.
Meemaw: You got your animal, like wool. Your plant, like cotton. And your synthetic, like acrylic.
Sheldon: Interesting.
Meemaw: You think so? I'm glad to hear that. Because each one of them has plusses and minuses, and you're about to hear them all in mind-numbing detail.

Mary: [eating pop corn] Get him, Dalton. Get him.
Georgie: Mary Cooper, what are you doing?
Mary: Nothing.
Georgie: Why are you watching Road House?
Mary: Why aren't you at work?
Georgie: I asked you first, and my question is way more interesting.
Mary: It was just on. I don't even know what that is.
Georgie: Then how'd you know his name's Dalton?
Mary: I don't have to explain myself to you.
Georgie: This is a pretty dirty movie.
Mary: How do you know? It is rated R.
Georgie: For violence, language and sexual content. You should be ashamed of yourself.