Sheldon: Are we going to watch an educational film?
Mr. Givens: We're gonna watch Star Trek.
Sheldon: Star Trek in school? Wowie Zowie.

Mary: Sheldon, faith means believing in something you can't know for sure is real. And right now, I am struggling with that.
Sheldon: So you don't believe in God anymore?
Mary: That isn't something for you to worry about. I need to figure this out myself.
Sheldon: Can I help? Maybe I could provide a fresh perspective.
Mary: I don't think so, baby.
Sheldon: Did you know that if gravity were slightly more powerful, the universe would collapse into a ball?
Mary: I did not.
Sheldon: Also, if gravity were slightly less powerful, the universe would fly apart and there would be no stars or planets.
Mary: Where you going with this, Sheldon?
Sheldon: It's just that gravity is precisely as strong as it needs to be. And if the ratio of the electromagnetic force to the strong force wasn't one percent, life wouldn't exist. What are the odds that would happen all by itself?
Mary: Why are you trying to convince me to believe in God? You don't believe in God.
Sheldon: I don't, but the precision of the universe at least makes it logical to conclude there's a creator.
Mary: Baby, I appreciate what you're trying to do, but logic is here. And my problem is here.
Sheldon: Well, there are 5 billion people on this planet and you're the perfect mom for me. What are the odds of that?

Mary: [on the phone] I have to come home.
George: Well, Sheldon's not gonna be real happy about that.
Mary: George, when is he ever happy?
[cut to Sheldon biting into a pretzel he just bought from a stall:]
Sheldon: This is the greatest pretzel I've ever had. Ich bin ein Heidelberger! [crowd cheer]

Sheldon: My parents are being completely unreasonable. They won't even let me drop out of school. And even after I told them that Bill Gates and Steve Jobs both dropped out of college.
Dr. John Sturgis: What did they say?
Sheldon: They said, "We don't care what your friends do, you're not dropping out."
Dr. John Sturgis: Well, Sheldon, I know it's disappointing, but, uh, I think they just have your best interests at heart.
Sheldon: They said that, too.
Dr. John Sturgis: And for every Bill Gates and Steve Jobs, there's a Paul Labiscous.
Sheldon: Who's that?
Dr. John Sturgis: Exactly.

Sheldon: Hello. Am I correct that the bus to Dallas has a stop in Rusk?
Stan: Yup.
Sheldon: I'd like to buy one ticket, please.
Stan: You need an adult to buy it.
Sheldon: Oh, I didn't know.
Stan: That's the rules.
Sheldon: I'm just trying to visit my friend in the hospital. Not the regular kind of hospital, a psychiatric hospital. He's actually a brilliant scientist in the field of theoretical physics. Dr. John Sturgis, you may have heard of him. Anyway, he's a great guy. We're almost the same height... And then he and my meemaw became a romantic item, not that there haven't been bumps in the road. I actually helped them by writing up a relationship agreement. I love drawing up contracts. But I don't love drawing. Interesting. Anyway, he doesn't drive. Maybe one day he'll take a bus and you'll get to meet him. Anyway... Even though I'm clearly her favorite grandchild, she swatted my bottom. It didn't hurt that much physically, but emotionally, it stung like the dickens.
Stan: Here you go. One ticket to Dallas with a stop in Rusk.
Sheldon: But that's against the rules.
Stan: I'm an adult, I bought it.
Sheldon: Ooh, a loophole. Thank you. I'd tell you all about the etymology of the word "loophole," but I have a bus to catch.

Dr. John Sturgis: The free-streaming length of the axion is too long. It'll erase the fluctuations.
Dr. Linkletter: You're completely forgetting that it is nonrelativistic dark matter.
Dr. John Sturgis: You'll never have the resolution to see microkelvin features.
Dr. Linkletter: I think your brain is as smooth as the top of your head.
Dr. John Sturgis: Low blow, Grant.
Sheldon: He's right, gentlemen, let's keep it to science.
Dr. John Sturgis: You'll never have the resolution to see microkelvin features.

Pastor Jeff: Before our final prayer, would anyone else like to say a few words?
Mary: Missy? [Missy shakes her head] Shelly?
[Sheldon stands up and walks up to the microphone]
Sheldon: I've been thinking a lot about the last moments I had with my dad. It was morning, and he was leaving for work. He said, "See y'all later." And I said nothing. I regret that. I could have said "bye" or asked him for a ride. Or told him that I loved him. But I didn't. I barely noticed he left. So many times that I didn't notice my father. I hope he knew how much I loved him.
Adult Sheldon: I wish I could tell you I said all those things. But I didn't.
Mary: Shelly? [Sheldon shakes his head] [Mary shakes her head to Pastor Jeff]
Pastor Jeff: Let's bow our heads in prayer.
All: Our Father, who is in heaven, hallowed be Your name...
Adult Sheldon: For a long time, I focused on my father's shortcomings. Now that I'm his age and have kids of my own, I realize he was just a person doing the best he could, and he did a lot. I didn't say it at his funeral, but I can say it now. I loved my father. I will miss him forever.

Principal Petersen: Our next young speaker needs no introduction, but that didn't stop him from writing one and making me read it. [laughter] "Fun fact." [audience groans, murmurs] I hear you. "The word 'valedictorian' is from the Latin 'valedicere,' meaning 'to say farewell.' It is primarily used in the United States, Canada, the Philippines and Armenia." Maybe that fact's more fun in Armenia. Please welcome your valedictorian, Sheldon Cooper.
Mary: Yay, Shelly!
Sheldon: Hello. I'm not very comfortable speaking in front of crowds. But there's a technique to reduce stage fright by focusing on one person in the audience and delivering your speech just to them. That's what I'll be doing today. If it weren't for this person, I wouldn't be here right now. They've taught me a lot, and it's by their example that I found the courage to move forward into this new and exciting chapter of my life. Missy... ...this is for you. Change can be scary, but I know we're going to be fine... ...because like you said, "It's okay to be scared. We just have to do it anyway." So if any of my fellow graduates are nervous about the future, know that you're not alone. I suggest you all try to be as brave as my twin sister. That's my plan. Missy, I wish I could give you advice about middle school, but I was so smart, I skipped it. If you make it to high school, we'll talk. Thank you. [applause]

Sheldon: Mom, I was going through our expenditures and noticed our grocery bills are up 12% compared to last quarter. Any idea why?
George: There's a person at the end of the table that eats for free.
Meemaw: There's a person at the other end of the table that eats for three.

Mary: Do you have any idea what's gotten into him?
Meemaw: I might.
Mary: Well?
Meemaw: Have you ever heard of Mobokachi Kaboom? Wait. Koshimaki Magoo. Wait a minute, I'm gonna get this.

Meemaw: What is happening with you?
Mary: Do you really want to know? So, the other day I was making a casserole to bring over to the Hansons, and I wanted to include a sympathy card. So I started to write, "Your daughter's in a better place." [VOICE BREAKING] And I had to stop. Because how could that possibly be true? How could a better place be anywhere than at home safe with her family? She was just a little kid. That could've been Georgie behind the wheel. How could that possibly be God's plan?

Meemaw: John?
Dr. John Sturgis: Hello.
Meemaw: What- What're you doing?
Dr. John Sturgis: I was doing tai chi and then I realized that I was continually being bombarded by subatomic particles and it behooves me, perhaps, to pay slightly closer attention to them. Maybe "chi" is the ancient Chinese word for the subatomic universe.
Meemaw: You're scaring me, John.
Dr. John Sturgis: Well, there's nothing to be scared of. Tomorrow, somebody will win the Nobel Prize about these particles not me. But I'm experiencing them firsthand [LAUGHS] which could be better.
Meemaw: Why don't you come down and experience them on the floor?
Dr. John Sturgis: I think I just felt a neutrino. [LAUGHING] You know, neutrinos are interesting. They never bond with anything, they're always alone. I think that one went right through my pants.
Meemaw: All right, why don't we go downstairs, and I'll fix us both a nice cup of hot tea and you can tell me all about it. Please?
Dr. John Sturgis: Okay. It was my dream to win the Nobel, and I'm not going to. I bet Sheldon will.
Meemaw: That'll be something.
Dr. John Sturgis: Yeah.

Pastor Jeff: So you were saying?
Sheldon: You've confused possibilities with probabilities. According to your analogy, when I go home I might find a million dollars on my bed or I might not. In what universe is that 50-50?

Sheldon: Professor Salzman, I just wanted to let you know that I studied up and am now well-versed in the Calabi-Yau manifold.
Professor Salzman: Okay.
Sheldon: It was never part of the curriculum at East Texas Tech.
Professor Salzman: East Texas Tech? Sounds charming.
Sheldon: It's actually quite humid. Regardless, I'm ready to reassert myself as class leader.
Professor Salzman: Your classmates are from some of the most elite universities in the world. There is no East MIT.
Sheldon: Well, I would have gone to a better school, but I was 11, which you have to admit is pretty impressive.
Professor Salzman: Sheldon, at some point we ask of the piano-playing dog not, "Are you a dog?" but, "Are you any good at playing the piano?"
Sheldon: Excuse me?

Sheldon: Now we need to put in a name before we start.
Meemaw: What are you thinking?
Sheldon: We should combine the letters in our two names, Sheldon and Meemaw.
Meemaw: Like, uh, ShelMaw?
Sheldon: No, using all the letters, like Emelda Showmen.
Meemaw: Did you just do that in your head?
Sheldon: Yes, why?
Meemaw: Never mind, just put it down.