Sheldon: This set was actually endorsed by Professor Proton.
Andy: Who's Professor Proton?
Sheldon: Who's Professor Proton? How much time do you have? Arthur Jeffries, aka Professor Proton, brought science to the masses on his revolutionary television show Professor Proton. Actually, this set is not for sale.

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.

Sheldon: Hello, Pastor Jeff.
Pastor Jeff: Sheldon, George, good news. I told the congregation about your exciting opportunity in Germany, and boy, were they thrilled to help. [laughs] I've never seen the collection plate so full.
Sheldon: Well, thank you. Are you seeing this? I am beloved.
Pastor Jeff: Sure.

Sheldon: I brought you some snacks. For Mom, a Bavarian-style pretzel. And for Dad, four Lone Star beers poured into a pitcher to approximate a stein.
George: What do you want?
Sheldon: For starters, a danke wouldn't kill you.
Mary: A what?
Sheldon: It's "thank you" in German. Uh, so, if you were thinking of thanking, then you'd be denken of danken. You're awfully quiet. I assume you're denken.
Mary: W-Where are you going with all this?
Sheldon: If I play my cards right, Germany.

Mary: Well, we're gonna have to talk to Dr. Sturgis before we make any decisions.
George: We're- We're not making any promises.
Mary: Mm-hmm.
George: This is not a yes.
Sheldon: But it's also not a nein, which German for "no", as opposed to the number nine, which is neun.