Missy: You have a calculator I can borrow?
Sheldon: Yes, but I'm using it.
Missy: No, you're not.
Sheldon: [Sheldon taps his head] Why do you need a calculator?
Missy: I'm trying to figure out what to spend my money on. What are you gonna do with yours?
Sheldon: I'm glad you asked. I'm dipping my toe in the exciting world of the stock market by purchasing three shares of RadioShack.
Missy: Why?
Sheldon: Well, as a shareholder, I'll be partial owner of my very favorite company. See, when companies go public, they sell shares of stock...
Missy: I'll just buy my own calculator.

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.

Sheldon: Unbelievable. It's either cartoons or men in their underwear banging their heads together.
Ricky: You complain a lot.
Sheldon: Excuse me?
Ricky: Seriously, dude, you need to relax.
Sheldon: How can I relax? I'm being held captive in a bacterial playground.

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.

Adult Sheldon: Today I thought we could talk about relationships, so I've invited my lovely wife Amy to help.
Amy: Thanks for letting me join in.
Adult Sheldon: Are you jealous when I do this without you?
Amy: No.
Adult Sheldon: Because one of the most common sources of conflict in relationships is jealousy. Now, Amy, did you know jealousy is triggered in the left part of the cerebral cortex?
Amy: I'm sorry, are you about to explain neuroscience to your wife, the Nobel Prize-winning neuroscientist?
Adult Sheldon: Yes. Jealous?
Amy: I'll tell you when there isn't a microphone in front of us.
Adult Sheldon: Ooh, mystery. That'll keep a relationship on its toes.
Amy: Your bathroom schedule is on the refrigerator. We have no mystery.
Adult Sheldon: Moving on, physical intimacy. I believe I said "physical intimacy," [title card changes] which can pose another challenge in relationships.
Amy: Especially when one partner doesn't want to be intimate as frequently as the other.
Adult Sheldon: Ooh, who are we talking about? [stammers] Don't tell me. Let the mystery continue.
Amy: Just read the next one.

Adult Sheldon: Money is a frequent source of conflict in a relationship.
Amy: Thankfully that's never been a problem for us.
Adult Sheldon: Says the woman who took away my comic book allowance.
Amy: Uh, to start a college fund for our children.
Adult Sheldon: Comic books are an investment.
Amy: There are better places to invest our money than that weird wolf man you like.
Adult Sheldon: His name is Wolverine and you know it.
Amy: Okay we're off on a tangent. I'm taking over. Money can be a source of conflict in a relationship, even having too much.
Adult Sheldon: Wh... Hey, this is my story.
Amy: I know. Jealous?

Missy: I'm gonna bring a bunch to school.
Georgie: How much you gonna charge for it?
Missy: Nothing. They're my friends.
Georgie: You think Ronald McDonald let his friends eat for free?
Missy: Ronald McDonald isn't real.