Penny: You know, being in a relationship with Leonard also comes with its challenges.
Beverly: Yes. Well, what can you do?

Bernadette: So, Beverly, did you know Penny is the number three sales rep at our pharmaceutical company?
Beverly: Oh, I didn't realize you two worked together.
Bernadette: Well, we don't exactly. I'm a microbiologist for the research team.
Beverly: Oh, what are you currently developing?
Bernadette: Some exciting new anti-anxiety drugs.
Beverly: That's interesting. I just attended a lecture on pediatric anxiety.
Amy: Oh, was it, uh, Dr. Janofski? I just saw his TED Talk.
Beverly: It was.
Bernadette: Well, let's get back to Penny. Hey, weren't you telling me something great about your company car?
Penny: Um, it has seat warmers.

Penny: How long have I had spinach in my teeth?
Beverly: Since the airport, dear.

Leonard: Hey, how'd it go?
Sheldon: It went well. Yeah, I've learned that if you never say you're sorry, the times you do really puts them on their heels. Uh, Stuart, I relieve you of your line duties.

Sheldon: Excuse me.
Leonard: Oh, please don't.
Sheldon: Uh, uh, I couldn't help but notice that you cut the line.
Guy: Oh, uh, I'm with my friends. It's cool.
Sheldon: Well, no. It's not cool. If there were reserved seating, and we all had tickets, that would be fine. But this line is first-come, first-served. Not show up tardy and nevertheless be first served. Right here.
Leonard: No.
Sheldon: You need to go to the back of the line.
Guy: Uh, who made you line monitor?
Sheldon: Mrs. Wunch in fourth grade. And my slogan was a line that's straight is a line thats great.

Beverly: That was very nice of Sheldon to apologize.
Amy: Well, he's come a long way. Or a short way very slowly, so it feels like a long way.

Sheldon: What about Joss Whedon's work makes you think he'd be okay with rule-breakers and line-cutters?
Guy: The Avengers are rule-breakers. Being vengeful is in their job description.
Sheldon: They work for SHIELD, which is a sanctioned department of the U.S. Government. Do you work for a sanctioned department of the U.S. Government?
Guy: As a matter of fact I do. At a little place called the DMV.
Raj: He's got him there. The D even stands for department.

Sheldon: You know, right now, at the back of this line, there's a movie fan like you who's not going to get in, because this person simply doesn't care. Yeah, well, 61 years ago, there was another person at the back of the line and her name was Rosa Parks.
Leonard: (To Raj) Okay, you may have to pretend you're black to get us out of here.

Leonard: Buddy, let it go.
Sheldon: No, I can't. This isn't right.
Leonard: You did everything you could.
Sheldon: No, I could've done more.
Leonard: Now, now, you denigrated the memory of a great civil rights pioneer. That's all anyone could ask.

Beverly: I'm still human, Penny. Not getting invited to my own son's wedding is difficult to ignore.
Amy: I know how you feel. She didn't invite any of us.
Penny: It was spur of the moment.
Bernadette: But we did get to see a live stream of it on the Internet.
Beverly: I could've watched it on the Internet?
Penny: (Sarcastically to Bernadette) Thank you.

Penny: Wow. Okay. Well, um, how about this? Maybe while you're still in town, Leonard and I could have another small ceremony. You know, if you're interested.
Beverly: I would find that perfectly acceptable.
Penny: She would find it perfectly acceptable. You guys saw it. We bonded!

Penny: Hey, look, then forget about her, let's do it for us. We could keep it small and informal. This time we can invite our families.
Leonard: Is your brother out of prison?
Penny: Thanks to overcrowding, yeah.

Mary Cooper: It was so nice of Leonard and Penny to invite me.
Sheldon: Well, actually, I-
Amy: It sure was.

Leonard: Penny's really looking forward to seeing you.
Alfred Hofstadter: Ah, she's a sweetie. You got a good one there, Leonard.
Leonard: Thanks, Dad.
Alfred Hofstadter: How the hell did you do that?

Howard: I don't know what to do. It's the Air Force. I mean, should I respond to their e-mail? Ignore it?
Raj: You can't ignore it. It's not that postcard that says it's time to go back to the dentist.