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.

Amy: So, it's strange, Sheldon was talking in his sleep last night, and he seemed like a totally different person. He was relaxed and loose and calm.
Leonard: Well, Sheldon's a complicated man.
Amy: He said "whatev."
Leonard: Give him a brain scan, that might be a tumor.

Penny: What's up?
Beverly Hofstadter: Well, I enjoyed our conversation the other day, and I was hoping to continue it.
Penny: Really?
Beverly Hofstadter: Uh, yes. You may find this surprising, but I don't have a lot of what you would call girlfriends.
Penny: (exaggerated) What?
Beverly Hofstadter: Of course, there are my female colleagues, but, uh, they're all Freudians, so the only boy that I can dish about is my father. (chuckles)

Penny: You know what? It's fine. Write whatever you want. And by the way, Logan Dean can tell everyone he's five-eight, but he's not fooling anybody!

Georgie: Leonard, you know how I got the money to open up my first store? I busted my ass for it, 'cause all the extra money that we had had to go to Sheldon so he could go to college and he could go study in Germany. And do you know what he's never said to me?
Leonard: Danke schon? It's, uh, "thank you" in German.
Georgie: Do you need me to sit on your head?
Leonard: Nope.

Sheldon: Can you believe they said I was just like Edison? Yeah, and in front of a lady, no less.

Sheldon: Well, luckily, I got the number of the company who's trying to reboot the show, so I need you all to call and register your displeasure.
Raj: Sheldon, no one's gonna do that.
Sheldon: Not true. I know of three calls they've received already: a Southern gentleman, um, a Cockney chimney sweep, and, uh, Mr. T, hmm? Who - spoiler alert - pities the fool who tries to reboot that show.

Amy: Is there anything I can do to help?
Sheldon: Yes. I want you to be in charge of our wedding. Just you tell me where and when, and I will show up with a boutonnire and close-toed shoes and a a Star Trek uniform underneath my tuxedo. That last part is non-negotiable.

Sheldon: But I need it. It's the only way to settle the contradictions between gravity and quantum mechanics.
Penny: Well, it's too much money, you can't ask for that all at once.
Sheldon: Well, what if I ask for it in six easy installments of $83,333,333.33?

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.

Amy: And rolling.
Sheldon: Hello. I am theoretical physicist, Dr. Sheldon Cooper, auditioning for the role of Professor Proton.
Now, excuse me while I get into character. (Turns around and back. In the same monotonous voice) Hello, I am Professor Proton.

Penny: All right, just give her some space, all right? Don't call, don't text, don't e-mail.
Raj: That's crazy. What if I see a sunset that reminds me of her?

Raj: Wait, what's Bitcoin?
Sheldon: It's a new online currency that's been developed. Uh, it's just like actual money, except you can't see it, hold it, or spend it on anything.
Stuart: Sounds like the kind of money I'm familiar with.

Penny: I cannot believe you're mad.
Leonard: I'm not mad.
Penny: Oh, really? Tell that to your eyebrows. Bet I could place a quarter between them, and it would just stay there.

Amy: I don't want to be in the middle of this. No matter which way I vote, I'm either a bad friend, a bad fiancée, or an ungrateful recipient of a battery.
Sheldon: Next time I have a meeting in the shower, you're welcome to attend.
Amy: Sheldon. Sheldon for president. I pick Sheldon!