Amy Farrah Fowler: You guys will never believe what just happened.
Rajesh Koothrappali: Yeah, we heard. You did it.
Sheldon Cooper: We did do it.
Amy Farrah Fowler: And we didn't even know we did it!
Howard Wolowitz: Wait, what?
Sheldon Cooper: Two physicists in Chicago had to tell us.
Leonard Hofstadter: Wait, what?
Sheldon Cooper: Their experiment on kaon decay supported our predictions on the higher order corrections pertaining to super-asymmetry.
Penny Hofstadter: Wait, what?
Bernadette Rostenkowski-Wolowitz: Howie, shh.
Howard Wolowitz: What?
Bernadette Rostenkowski-Wolowitz: You can't bad-mouth Anu. They're gonna get back together, and you're gonna look like a jerk. I mean, remember when we broke up, and Penny said all those mean things about you?
Howard Wolowitz: What did she say?
Bernadette Rostenkowski-Wolowitz: I don't want to get into it. Some of it was hurtful, most of it was true.
(Penny explains to others what not to say infront of Amy and Sheldon to not make them upset...)
Penny Hofstadter: We should just try and avoid anything that makes them think of their project or science or Nobel Prizes or successes or failures.
(Amy and Sheldon walk in...)
Amy Farrah Fowler: What are you guys doing?
Bernadette Rostenkowski-Wolowitz: Nothing.
Sheldon Cooper: Nothing? Like what my career has come to? Thanks a lot.
(Sheldon storms out of the room)
Howard Wolowitz: Nice going.
(Raj is introducing Andrea, the director of the planetarium, to Howard...)
Howard Wolowitz: Nice to meet you. I'm Howard Wolowitz. Engineer, husband, father... astronaut.
Andrea: Really? You're an astronaut?
Howard Wolowitz: Well, I don't like to brag.
Rajesh Koothrappali: Hmm, yeah, but somehow, you manage.
Bernadette Rostenkowski-Wolowitz: Man, that is one hot weather girl.
Howard Wolowitz: How come if I say that I get in trouble?
Bernadette Rostenkowski-Wolowitz: You want to say it? You can say it.
Howard Wolowitz: Nice try. You're gonna have to find some other way to not have sex with me tonight. And it's not weather girl, it's weather woman.
Howard Wolowitz: Higgs had to wait almost 50 years before they built a collider big enough to prove his theory.
Sheldon Cooper: 50 years? But I want to play with it now.
Rajesh Koothrappali: You just have to wait for science to catch up or technology to get cheaper. Think about, uh, DVD players... they used to cost, like, a thousand dollars, but just the other day I used one to smash a bug.