Sheldon: And get this, I saw an articulating ladder with dual-leg leveling, which delivers stability and adaptability to uneven terrain.
Amy: Sounds like a big night.
Sheldon: Yeah. Raj made the funniest joke, he said, "Which is the best ladder to use to hang myself?"

Penny: Come on, looks don't matter to Sheldon. ... Because he only has eyes for you!
Amy: Nice try.
Penny: Thanks, I was scrambling.

Raj: We're being ridiculous. There's no way a woman that attractive is trying to seduce Sheldon Cooper.
Howard: You done trying to make yourself feel better?
Raj: No. I haven't played the race card yet.

Leonard: Uh, so, Ramona, tell us about yourself. Do you, do you have a boyfriend?
Sheldon: Leonard, your wife is sitting right here. What are you doing?

Penny: All right. What do you think is happening?
Sheldon: I think Dr. Nowitzki is a friendly colleague. I think you and Leonard need to see a marriage counselor. And I need to update my rsum to include swimming as a special skill.

Ramona Nowitzki: No, my work doesn't leave me a lot of time for relationships.
Raj: I think you made that very clear.

Raj: Dr. Nowitzki. Good to see you.
Ramona Nowitzki: Good to see you, too.
Raj: May I join you?
Ramona Nowitzki: No.
Raj: Good to see you.

Penny: Not only did they eat together, Leonard said he made her laugh.
Bernadette: That's nothing, Howie said she touched his hand.
Penny: Did he Purell?
Bernadette: No.
Penny: I cannot believe Leonard mentioned the Toblerone but left that part out.

Sheldon: That may be true, but Dr. Nowitzki's just a friend. In fact, I wouldn't have even noticed she's a woman if she hadn't worn that bathing suit that highlighted her bosom.

Sheldon: She's always been a huge fan of my work, and now she's doing research at Caltech.
Amy: Huge fan, you say?
Sheldon: Yes. I think you'd like her. She's extremely intelligent, just like you. Unlike you, she's tall, blonde and used to be an Olympic swimmer.

Sheldon: Because there's only one of me, I'm more valuable.
Penny: Right.
Sheldon: Although, Amy's already taken me out of my package and played with me.

Amy: Why didn't you tell me?
Bernadette: We didn't want you to worry.
Amy: Should I worry?
Penny: No, come on, it's Sheldon. Nothing is gonna happen.
Amy: That's what you said to me when I started dating him. And then five years later, bingo-bango, something happened.

Raj: Actually, I was going to suggest me.
Howard: Great. Anybody's better than, (glancing at Stuart) mmm.
Stuart: Excuse me. They took out my spleen and gallbladder, not my feelings.

Penny: Do you really think there's reason to worry?
Leonard: Yeah, she's definitely going after Sheldon.
Raj: I made a play for her and she shot me down.
Penny: All right, well, that doesn't prove anything.
Bernadette: Yeah, there's a million reasons a woman would shoot Raj down.
Raj: Like, really, a million?
Bernadette: Fine, hundreds.
Raj: Thank you.

Amy: I've been smacking that ketchup bottle for a long time. All she has to do is tip it over and point it at her fries.