Sheldon: Now you don't want me to go to college either?
George Sr.: I didn't say that. I'm just saying, given how young you are, we need to be realistic.
Sheldon: I'll have you know I recently took care of my own boo-boo.
George Sr.: And as grown-up as that makes you sound, I don't think it's gonna convince your mother.
Sheldon: What will convince her?
George Sr.: I don't know, but I'm sure between the two of us, we can come up with a plan.
Sheldon: Well, you managed to get her to marry you, so you do have a track record.

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.

Mary: Shelly and this college stuff is killing me. I... I never went to college. How can I prepare him?
Brenda Sparks: Mary, if that kid is smart enough to have colleges wanting him already, he's got to be smart enough to figure it out.
Mary: Maybe. It still hurts to hear him say he wants to leave.
Brenda Sparks: I bet. On the other hand, I'm worried my Billy will never be ready to leave.
Mary: Oh, of course he will.
Brenda Sparks: Damn. Smoking, drinking, lying. You're covering all the sins today.

Mary: So, George is mad at me, and Sheldon is mad at me, and... honestly, I'm mad at me, too.
Brenda Sparks: Will you please give yourself a break? All that you do for that family, I am surprised you didn't crack years ago.
Mary: How do you handle it all?
Brenda Sparks: I'm sitting in a chicken coop drinking a wine cooler at 11:00 a.m.... clearly, I don't.

[on the "Why Sheldon Cooper Should Go to College" tape:]
Ms. Ingram: Honestly... teaching Sheldon is the hardest thing I've ever had to do. And I don't say that because he can be a pain. I say that because he's so intelligent, I had to study every night just to keep up. I'm gonna miss him.