Sheldon: For example, if Mandy and Georgie were married, she'd be our sister-in-law.
Missy: But they're not.
Sheldon: Exactly. So we need a term for the unmarried mother of our future niece or nephew.
Missy: How 'bout "Mandy"?
Sheldon: Follow me... if we knew the sex of the baby and it was a boy, I was thinking we could call Mandy "nephewterus," because she'd be having a nephew in her uterus. However, "nieceuterus" just doesn't hit the ear right.
Missy: I still think "Mandy" works.
Sheldon: Now, there is a gender-neutral term coined by linguist Samuel Martin in the 1950s, which takes the "N" from "niece" or "nephew" with "sibling"” to get "nibling."
Missy: So she'd be our nibling?
Sheldon: No, the baby's the nibling. Mandy would be either the niblingess or the niblinger. Or, in a swerve from our traditional German suffixes, "niblingo."
Missy: That one.
Sheldon: Oh, yeah, that one's the winner.

Sheldon: Missy and I broke a lot of rules the other night, and we've received no punishment.
George: [sighs] Buddy, it's been a rough week. We're just glad you're both safe.
Sheldon: But in the absence of a divine being, society's rules are what keeps a person's morality in check.
George: Well, there you go.
Sheldon: No, y-you're not following me. If actions have no repercussions, society breaks down, everything devolves into chaos.
George: You might be overthinking this.
Sheldon: I thought so, too. Then I thought about it, and I'm not.
George: Sheldon, you had one bad night. Just let it go.
Sheldon: But... I did something wrong and I got away with it. That's not okay.
George: Buddy...
Sheldon: Socrates maintained that the man who lies to himself has an enemy living within. He's not even a person. He's just a chaos of selfish desires wrapped in an animal hide.

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.

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]

Mary: All right, what do you know?
George: Well, they're probably gonna have to pay some fine, and-and they're gonna need cash.
Mary: My son is gonna be in jail overnight?
George: What about your mother?
Mary: Oh, she's been there before.

Sheldon: Meemaw's in jail?
Mary: Uh... No.
George: Forget about it.
Sheldon: Forget about it? Do I need to remind you I remember my birth?
George: [grunts] Go to your room.
Sheldon: That was a rough day.
Mary: Rough day for me.

Sheldon: What is happening to our family?
Missy: I know. Georgie and Meemaw in jail.
Sheldon: Mom getting kicked out of the church.
Missy: Georgie having a baby out of wedlock. You know what this means, don't you?
Sheldon: What?
Missy: We really are white trash.
Sheldon: Speak for yourself. I'm in college on a full ride. But I wish y'all luck.