Dr. John Sturgis: Tell me more about you.
Sheldon: My favorite color is blue.
Dr. John Sturgis: Mine, too.
Sheldon: My favorite ice cream: vanilla.
Dr. John Sturgis: Good man.
Sheldon: My favorite food: spaghetti with hot dogs cut up in it.
Dr. John Sturgis: I've never had that.
Sheldon: What's your favorite food?
Dr. John Sturgis: Grilled cheese.
Sheldon: What about the risk of mouth burn?
Dr. John Sturgis: It's a perfect excuse for vanilla ice cream.
Sheldon: If you want to propose tonight, you have my blessing.

Meemaw: I should probably get 'em into some water.
Sheldon: I can do that. You two begin your courtship.
Meemaw: Moonpie.
Sheldon: Yes?
Meemaw: Go home.
Sheldon: So you can begin the courtship, got it.
Meemaw: Go!

Sheldon: How'd it go?
Meemaw: Oh! What the hell?
Sheldon: I wanted to know how your date went, and I got bored watching you sleep.
Meemaw: How long have you been there?
Sheldon: 67 minutes.

Sheldon: Now, tell me everything.
Meemaw: Go away. Let me sleep.
Sheldon: Okay. But before I go, should I be worried he's not in your bed?
Meemaw: Get out!
Sheldon: I certainly hope you were nicer to him.

Dr. John Sturgis: Mr. Cooper?!
Sheldon: Huh?
Dr. John Sturgis: Are you paying attention?
Sheldon: I already know this.
Dr. John Sturgis: You know this?
Sheldon: But they don't, so by all means, continue.

Adult Sheldon: In panic situations, I'd often lose consciousness. This time, I only lost my voice.
Sheldon: [WEAKLY] Help. Please help.

Missy: Who are you? You're so cute.
Sheldon: [weakly] Be careful.
Missy: What are you doing up there?
Sheldon: Staying alive.

Sheldon: Well, that was the most stimulating dinner I've ever had in this house.
Mary: Glad you enjoyed it.
Sheldon: That man is a true role model.
George Sr.: Well, it's nice you finally got a man you can look up to.
Sheldon: Oh, believe me, I know.

Sheldon: I've been researching things that you and I can do with Dr. Sturgis. There's a lecture tonight at Rice University called "What's happening at the center of our galaxy".
Meemaw: Let me just stop you right there.
Sheldon: Don't worry. I know what's happening at the center, but I would never spoil it for you.

Adult Sheldon: Some people have said I'm overly sensitive.
Sheldon: [screaming]
George Sr.: What now?
Sheldon: Missy gave me cinnamon gum!
George Sr.: Sure, sure.

Sheldon: Good morning.
Meemaw: [YELLS] Are you trying to kill me?
Sheldon: No, I think you're great.

Adult Sheldon: Over the next 17 minutes, I used physics, geometry and old-fashioned hard work to create the perfect newspaper-folding system.
Sheldon: I'm done.
George Jr.: Great. Let's load up the wagon.
Sheldon: No, I'm done with this one, I still have 39 more to go.

Paige: The spaghetti goes on the hot dogs?
Sheldon: No. You realize this is a very advanced class. We'll be discussing deriving nuclear physics from the quark model.
Paige: Do you know if he'll be doing a full color octet calculation with matrix manipulations?
Sheldon: I do not.
Paige: Do you know how to differentiate under the integral sign?
Sheldon: No.
Paige: [CHUCKLES] Well, do you know anything?
Sheldon: I know you're in my spot.

Sheldon: Also, you don't have any friends. Why are you so worried about me?
Mary: I have friends.
Sheldon: Then how come the only person who ever comes over is Meemaw?
Mary: Because ... Okay, this isn't about me.

Sheldon: Mom, have you received any distressing phone calls today?
Mary: No. Why?
Sheldon: Just wondering if it's an appropriate time to ask if you could take me to Radio Shack.

Missy: You're so weird.
Sheldon: More than usual?
Missy: No, I guess not.
Sheldon: Perfect.

Adult Sheldon: To avoid looking suspicious, I tried to interact with my mom as little as possible. Thankfully, it's rude to speak with your mouth full.
Mary: You look tired, baby. Sleep okay?
Sheldon: [shoveling food into his mouth] Mm-hmm.
Mary: So how big a tax refund you think we're gonna get?
Sheldon: [pointing at his mouth] Mm.

Missy: I don't want to do it.
Sheldon: Why not?
Missy: They probably just want to find out why you're so smart and I'm just average.
Sheldon: [QUIETLY] Average? That's a little generous.

Sheldon: I introduced them. Her math skills are dreadful.

All: Trick or treat.
Melissa: Oh, look how cute y'all are. Now, I know you are Superman. What about the rest of you?
Missy: I'm Cyndi Lauper.
Tam: I'm a wizard.
Melissa: Uh-huh.
Sheldon: And I'm Carl Sagan.
Melissa: Who?
Sheldon: Carl Sagan. He's the host of Cosmos.