Sheldon: You know, in a way, you and I are having a very similar day.
Mandy: Really? How might that be?
Sheldon: I'm also bringing something new into the world. Although mine does not involve my privates being inspected my strangers.

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.

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.

Sheldon: You've been through this before. How long does it take?
Brenda Sparks: Depends. With Billy, it was days.
Sheldon: Well, he always has been a tad slow.

Billy Sparks: Do you think my mom and your dad are going to be boyfriend and girlfriend?
Missy: No.
Billy Sparks: If they got married, would that make us brother and sister?
Missy: It's not gonna happen.
Billy Sparks: Luke Skywalker and Princess Leia were brother and sister, and they still kissed. [Missy scoffs] I didn't write it. [Missy scoffs again]

Sheldon: All right, let's do this.
Mandy: Why are you wearing dish gloves?
Sheldon: To deliver the baby.
Mandy: That is not happening.
Sheldon: Good. Whew. Can I get a glass of water?
Mandy: Sheldon, I need to go to the hospital.
Sheldon: Well, I can't drive. I do have a bike, but you'll never fit in the wagon.