Bernadette: And just to be safe, when you talk to him don't bring up Jimmy Carter, gardeners, foreign people, homosexuals, Sean Penn, Vatican II, gun control, organic food, the designated hitter rule, recycling or the fact that you're Jewish.

Howard: I'm sorry I didn't take you to the airport. I just want you to know I'll never forgive myself for being so selfish. And I promise to keep you close for the rest of my life.
Bernadette: Oh, no, that thing's gonna end up in my bedroom.

Bernadette: (Shouting from the bathroom) How many times do I have to tell you to replace the toilet paper when it's empty?
Howard: I'm in the middle of something.
Bernadette: So am I!

Bernadette: Gosh, Amy. I'm sensing a little hostility. Is it maybe because like Sheldon's work, your sex life is also theoretical?

Howard: I'm not signing a prenup.
Penny: All right, Howard Wolowitz, listen up! You sign anything she puts in front of you, because you are the luckiest man alive. If you let her go, there is no way you can find anyone else. Speaking on behalf of all women, it is not going to happen, we had a meeting.

Penny: So you're saying if I became a famous movie star, we got married, you wouldn't sign a pre-nup?
Leonard: Absolutely not! If I'm gonna be stuck at home with the kids while you're on location cheating on me with Ryan Gosling, then Leonard gots to get paid.

Penny: Hey, what are you guys doing here?
Howard: We're grown men, we drink at bars.
Penny: No and no. Everything okay with you and Bernadette?
Howard: Oh yeah, sure.
Penny: You and Amy? Good?
Sheldon: Oh, better than good.
Penny: You know those girls text me every detail of their lives as it happens.