Ms. Ingram: Oh! There's my man.
Sheldon: Where?
Ms. Ingram: You, silly.
Sheldon: I'm neither a man, nor silly, but all right.
Ms. Ingram: You're so funny, Sheldon.
Sheldon: Oh, well, that I am.

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.

Sheldon: [answering phone] Cooper residence.
Dr. John Sturgis: Hello, Sheldon.
Sheldon: Dr. Sturgis. I'd love to talk to you, but I'm right in the middle of Star Trek: The Next Generation. It's a good one. Geordi goes missing, but Wesley Crusher has a plan to use neutrinos to locate him, since they'd be visible to Geordi's visor.
Dr. John Sturgis: I was actually calling to speak to your father. But I'm glad you're having fun with your friends.
Sheldon: Hang on. I'll go get him. Dad! Phone call!
Adult Sheldon: Even though Dr. Sturgis was confused, one day, Wesley Crusher really would be my friend. Neat, huh?

Mary: Well, if it's everywhere, how can we fight it?
Pastor Jeff: We may not be able to control the world, but we can control our homes. It's up to us to create an environment where the sin of greed can find no purchase.
Mary: Is that what you've done in your home?
Pastor Jeff: Well, I do make my toast vertically, two slices at a time. Take that, Satan.

Dr. John Sturgis: Here we go.
Adult Sheldon: For many kids, Christmas morning was the most exciting day of the year. That's only because most kids don't know the joy of getting their college midterms back. It also didn't hurt that Dr. Sturgis looked like an elf.
Dr. John Sturgis: Nice work, Sheldon. Now, you'll notice that your grades are lower than expected. That's because Sheldon did so well, he broke the curve, turning your A's and B's into B's and C's.
Sheldon: They don't seem happy about it. Maybe you can give them candy.