Sheldon: Can you settle an argument? I said you're fine. Darren and Oscar said you're not fine.
Paige: [scoffs] Why wouldn't I be fine? I'm completely alone, and the one person I thought would understand is having the time of his life.
Sheldon: So... just to clarify...?
Paige: They're right, you're wrong.
Sheldon: Dang it.

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]

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.

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.

Sheldon: Paige? Why are you here?
Paige: The lecture.
Sheldon: Well, if you're looking to jump the line, I don't do cutsies.
Paige: No, I'm actually part of the lecture. Professor Patterson is my mentor at U.T.
Sheldon: Really? You're part of the quantum gravity team?
Paige: Yeah, it's actually really interesting. We've been examining all...
Sheldon: I know what it's about. It's why I've been waiting in line for three hours.
Paige: Wow, three hours to see me speak? I didn't know you were such a fan.

Paige: Your neighbors let you hang out with them?
Sheldon: I'm basically the social glue of our floor.

Missy: Meemaw picked me up in her new car.
Meemaw: We drove with the top down. A truck driver honked at us. [chuckles]
Missy: It was awesome.
Meemaw: See? Missy loves my car. I don't know what Dale's problem is.
Missy: You're too good for him anyway.
Mary: Should she really be hearing about all this?
Missy: Mom, she just got dumped. It's what you do. Ooh, is any of his stuff at your house? Let's set it on fire.
Mary: Don't you have homework?
Missy: My grandma's hurting. She needs me.
Mary: Go.