Penny: I thought they fired you guys.
Sheldon: They did, but then they hired me back.
Leonard: Well, you better not be working on our project, because we're a team.
Sheldon: Leonard, there is no "I" in team. However, there is an "I" in "I'm working with the military and you're not." There's five of them, in fact.

Sheldon: What time does the trial period end?
Leonard: 12:00, noon.
Sheldon: Yeah, what does it say after that?
Leonard: Eastern Standard Time.
Sheldon: That was three hours ago. And, uh, since you didn't exercise your right to revoke, I exercised my right to extend, triggering this long-form rental agreement of which you're already in violation.
Leonard: This is just a-a bunch of paper. You can't enforce this.
Sheldon: Hire a lawyer. Let's find out.
Leonard: This is not happening.
Sheldon: Be that as it may, page nine says that you have to provide me with lemon-flavored sparkling waters, so chop-chop.

Stuart: Oh, look at that. Neil Gaiman tweeted about my store!
Howard: What did he say? Uh, "Next time you're in Pasadena, check out The Comic Center. Great vibe, old school, the owner really knows his stuff." Isn't that amazing?
Sheldon: Well, uh, it's no Sandman, but I guess we can't expect everything he writes to be a masterpiece.

Sheldon: All right, Amy, you're up. Next decision.
Amy: Come on, first dance! Come on, first dance!
Sheldon: (runs computer randomizer) Invitations! Oh! That's a good one. Just a suggestion, hologram projected out of R2-D2.

Leonard: You having a good day?
Penny: No, I missed an audition because my computer broke, and I didn't get the e-mail. Would've been a perfect part for me.
Sheldon: Was it waitress who ignores her customers? Because that's the role you were born to play.
Penny: Shut up and eat your burger.
Sheldon: Actually, it's a turkey club.
Penny: Didn't you order a burger?
Sheldon: I did, and yet here we are.

Howard: Are you guys working together on that meteorite project?
Sheldon: (sighs) Yes, fine, you found me out. I'm doing geology. Just, please, don't tell anyone.
Bert: Are you embarrassed of me?
Sheldon: Oh, no, no, no, not you. No, just the work that you've devoted your entire life to.

Amy: Why do you keep tying and untying that bow tie?
Sheldon: I can't seem to get it even.
Amy: Well, I don't think it's supposed to be even. Sometimes a little asymmetry looks good. In the Renaissance, they called it "sprezzatura."
Sheldon: The Renaissance? Amy, you know I'm more of an Enlightenment person. At some point, we have to decide how we want to raise the children.

Leonard: It's just a day trip, but we could take the ferry out to Catalina.
Penny: Great, let's do it.
Sheldon: (rushing in to the apartment) Amy's in the bathroom and I need to - (retches, bathroom door shuts, vomits loudly)
Penny: It's like I can hear the ocean already.

Stuart: Huh. What's that? Ooh, Batman flash drive. Pretty cool. Huh, if I erase this, I could probably resell it for, like, ten bucks. Things are finally going my way.

Missy: Hey, Shelly.
Sheldon: I'm so glad you made it, Missy. This is my fiancée, Amy. Amy, this is my sister. If I ever need a kidney, this is where you get it.

Sheldon: You know, studies have shown that people distracted by emotional issues are poor drivers.
Howard: What about people distracted by irritating passengers?
Sheldon: That would be hard to test, because irritating is a subjective quality.
Howard: Strongly disagree.

Raj: But why do they still call Batman using the Bat-Signal? Wouldn't it just be, like, easier to text him?
Howard: The Bat-Signal isn't just to alert Batman, it's also to strike fear in the hearts of his enemies and let them know he's coming.
Leonard: Sort of like Sheldon's knock.
Sheldon: Comparing me to Batman? I'll take it.

Leonard: I want to know, why aren't you proud of me?
Beverly Hofstadter: Well, isn't the real question, "Why aren't you proud of yourself?"
Leonard: No, that is a question - and I ask it a lot - but let's stick with the one I asked you.
Beverly Hofstadter: But why do you think I'm not proud of you?
Leonard: Because you never say it. But two days into chatting with Penny, and you can't stop telling her how great she is.
Beverly Hofstadter: She is great. Honestly, of all of my children's spouses, she's the one that I'm most impressed by.
Leonard: Seriously?
Beverly Hofstadter: Yes. She's confident, she's thoughtful, and she never complained about you once. I know what kind of strength that takes.

Amy: Okay, what's the next test?
Sheldon: Loyalty. We need to choose someone who has our backs, someone who will keep our secrets even from each other.
Amy: Well, I don't have any secrets from you. Do you have secrets from me?
Sheldon: Yes. Oh, that has been weighing on me for years.

Howard: Now you're gonna want to slowly switch lanes.
Sheldon: Why?
Howard: Because there are only two, and you're not in either of them.