Dr. John Sturgis: But we haven't cut open the pineapple yet.
Mary: You boys go ahead. We'll eat the pineapple another time.
Sheldon: But we haven't had a chance to talk about science.
George Sr.: Ooh, can Sheldon come?
Sheldon: Can I?
Mary: No.
Sheldon & John: Aw.

George Jr.: This is really good, Meemaw.
Meemaw: Really good? You're spitting the best brisket in Texas all over the damn table.
Mary: Close your mouth when you eat.
Sheldon: Or aim your face the other way.

Sheldon: Oh dear, Big Bird.

Dr. Hodges: Anything else?
Sheldon: Yes. I'd like a glass of water. It's time to take my Zantac.

Sheldon: Wednesday morning, the Nobel Prize winners are going to be announced in Sweden, and we'll hear it as it's happening.
Dr. John Sturgis: Well, 2.8 milliseconds later.
Sheldon: Sure, because of the propagation.

George Sr.: If you want to see Stephen Hawking, we have to sit down right now.
Sheldon: It's too dangerous. I can't!
George Sr.: It's okay to be scared. Th- That's when you got to dig deep and be brave. So, what do you say?
Sheldon: No, I'm your terrified little boy!

Adult Sheldon: Once I was on the lookout for liars, I saw them everywhere.
William Shatner: [on TV] ...absolutely necessary.
Sheldon: You're not a captain. You're just an actor. Which is another word for liar.
William Shatner: [on TV] And nothing... is more important than my ship.
Sheldon: He's so darn good at it, though.

Sheldon: Dad, would you care for a piece of gum?
George Sr.: No, thank you.
Sheldon: Please, take a piece of gum.
George Sr.: Why?
Sheldon: Just please. Bazinga.

Sheldon: I'm sorry, Pete. You were saying?
Pete: Any chance your bread was past the expiration date?
Sheldon: No, it was brand-new. But I did a taste comparison after it was bought out by the Domestic Food Corporation, and they are definitely not the same.
Pete: Well, I can assure you that, "the recent acquisition by the Domestic Food Corporation has not affected the quality of our products in any way. Every single bread, baked good, and pastry is made with love. From our hearth to your home."
Sheldon: Then why does it taste different, Pete? Why?
Pete: Well, because now we make everything really cheap and fast. Bye.

Mary: What I meant was... maybe it's time to take a break from your college classes.
Sheldon: What? Why? I've gotten straight As.
Mary: I know you're smart enough for college. I'm just not sure you're mature enough.
Sheldon: Well, it appears you've backed me into a corner. I would throw a tantrum right now, but that would just prove your point.
Mary: Where are you going?
Sheldon: To play with my trains. Which may sound immature, but it's a hobby many old men enjoy.

Adult Sheldon: My sister encouraged me to embrace adolescence as a journey of scientific discovery. I stood before a whole new teenage world of music, slang words and even clothing styles. [Sheldon removes a red Flash t-shirt] Pretty groovy, huh?
[Sheldon stands in front of his bedroom mirror wearing the red Flash t-shirt over a blue undershirt]
Sheldon: Wow, I might look too cool.

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

Dr. Linkletter: [on the phone] Look, I haven't done a forensic examination of this paper, but it's not uncommon to show your work to a colleague to get their feedback.
Sheldon: But I fixed his paper.
Dr. Linkletter: This kind of accusation could have real consequences. I'd consider my next steps very carefully.
Sheldon: You're no help. Put me through to your supervisor.
Dr. Linkletter: Please let me speak to John before you take this any further.
Sheldon: All right, but if he calls me a baby, feel free to say, "Then I guess you needed a baby to fix your paper."
Dr. Linkletter: That's a good one, but I'm not gonna say it.

Missy: I'm liking my crock monster.
Dr. John Sturgis: Mmm. Me, too.
Sheldon: I can't taste anything after the lemon water.

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.

Dr. Lee: I suggest we mount a radio telescope on the roof so that we can get a good read on the fluctuations in radiation.
Dr. Linkletter: Excellent. We'll pick a small region of the sky and drill down.
Dr. John Sturgis: Whoa, whoa, pump your brakes. We need at least a 45-square-degree sector of the sky in order to take any meaningful readings.
Sheldon: That's ridiculous. What we need to do is cut a single linear section across the horizon.
Dr. Linkletter: No, if we don't focus, we won't get any useful data. I suggest 20 arc minutes max. The trick is to pick a good spot.
Dr. John Sturgis: You want a trick? Go see David Copperfield.
Dr. Linkletter: How about I make you disappear?
Dr. Lee: [claps] Do I need to separate you? Or can we try to put our minds together for the advancement of science?
Dr. Linkletter: The second one.
Sheldon: I know you're new here, ma'am, but this is our process. They argue, I swoop in and save the day. It may seem unorthodox to you, however... [Dr. Lee claps again] The- The second one.

Sheldon: I will not be denied my jelly. [lid pops] Yes! Watch out, peanut butter. You're next.

President Hagemeyer: Well, I hope that you're starting to see the challenge I faced putting any of you in charge.
Sheldon: You're right, we're sorry.
Dr. Linkletter: Stop that.
Sheldon: Sorry.
Dr. John Sturgis: Well, we can't move forward until a project leader is chosen.
Sheldon: He's right, I'll do it.
Dr. Linkletter: You're a child.
Dr. John Sturgis: [to Linkletter] You're a child.
President Hagemeyer: Oh, you're all children.
Sheldon: Sorry. [to Linkletter] Sorry.

Adult Sheldon: The next day I returned to my role as lab assistant with renewed vigor. Bolts were greased, wires were stripped, floors were swept, all with a smile. It was a forced smile but you'd never know.
Dr. Linkletter: I must say, Sheldon, I'm impressed.
Sheldon: I gave you my word and I'm standing by it.
Dr. Linkletter: Well, I know it's not glamorous, but all scientists pay their dues.
Sheldon: And I'm happy to do it.
Dr. Linkletter: Good man.
Sheldon: I understand my role here. In fact, I noticed a flaw in your reaction rates, but I kept it to myself because I know my place.
Dr. Linkletter: You really think there's a flaw?
Sheldon: Oh, yes.
Dr. Linkletter: What is it?
Sheldon: I appreciate you testing me, but I'm not going to crack.
Dr. Linkletter: I'm not testing you.
Sheldon: Nice try.

Pastor Jeff: Who would like to tell us how God touched their lives this week? [Sheldon raises his hand] Sheldon.
Sheldon: He didn't, because He doesn't exist.
Pastor Jeff: Then why raise your hand?
Sheldon: Not just any hand. My left hand. Because I'm able to overcome any obstacle.
Pastor Jeff: And maybe God helped you do that.
Sheldon: Actually, it was Stephen Hawking, and he's better because he exists.
Pastor Jeff: Yes, 'cause God made him. Anybody else? [Billy raises his hand] Billy.
Billy Sparks: Is this gonna be on the test?
Pastor Jeff: Oh, boy.