Tam: Are you okay?
Sheldon: No, I'm not. [slides over his paper]
Tam: Yeah, so?
Sheldon: A B-plus that's the beginning of the end.
Tam: The end of what?
Sheldon: My life. If I don't make some changes, who knows how far I'll fall. I could wind up a drug addict, or a lawyer.

Mary: Let's say grace.
Sheldon: Hang on, safety first. [puts mittens on]
George Jr.: When are you gonna get over that?
Sheldon: I would think recent events would make you value protection.
Mary: Enough.

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.

Missy: What's it like to not believe in God?
Sheldon: It's great. Big fan.
Missy: Are you ever afraid you're wrong?
Sheldon: About religion? Never. About other things? Also never.

George Jr.: Fourth down.
George Sr.: Gotta punt.
Missy: Gotta.
Sheldon: Statistically, always punting on fourth down makes no sense.
George Jr.: Statistically, you're a dumbass.

Tam: Hey, I've been looking all over for you. Do you know how popular we are?
Sheldon: We?
Tam: Yeah. I put the word out I was helping you with the football stats. And since I'm Asian, they bought it.

Adult Sheldon: In Texas, the Holy Trinity is God, football and barbeque, not necessarily in that order.