Sheldon: Mandy, did you change the topic to fried chicken because my topic was awkward?
Mandy: I did.
Sheldon: And is it awkward that I'm bringing it up again?
Mandy: It's getting there.
Sheldon: It's not a magic chair, anyone can sit there, and even if spirits existed, which they don't, they can't call dibs on furniture.

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.

Pastor Jeff: Okay, now our next baptism is for Sheldon Lee Cooper, our soon-to-be brother in Christ. And, personally, this is a big get for me.

Caltech Professor: You lost?
Sheldon: No. I'm exactly where I'm supposed to be.
["Walk of Life" by Dire Straits plays]

[Adult Sheldon walks through his childhood home:]
Adult Sheldon: Eventually, my mom sold the house. My dad's chair was gone. My spot was gone. [sits down on couch] Where we ate together. But I can still remember it exactly the way it was the day I left for Caltech.
Missy: Hey.
[Young Sheldon turns around to face Missy]
Missy: What are you doing?
Sheldon: Taking it all in one last time, so I remember it when I'm older.
Missy: You gonna remember me?
Sheldon: I have an eidetic memory. I have no choice.
Missy: Ha.