Penny: Still, it made him so happy showing you around his lab yesterday.
Beverly Hofstadter: Interesting. Would you say that that made him, uh, much happier than usual, somewhat happier than usual or as happy as usual?
Penny: Hmm, multiple choice. Um, I'm-a go with D: "that's a weird question."

Penny: Beverly, I have to say, it's so nice seeing the two of you get along.
Beverly Hofstadter: Oh, I've always gotten along with Leonard. Of all of my children, he's the most docile.
Leonard: She wrote that in a birthday card once. I keep it in my nightstand.

Howard: So she's coming over again, huh?
Stuart: Yeah, we're gonna do a movie night.
Howard: It's my house. Don't you think you should ask me?
Stuart: You're right, I'm sorry. Howard, would you like to come to movie night?

Raj: How come we never eat in the dining room?
Bernadette: Oh, that's for company.
Raj: What am I?
Howard: Apparently, a guy who wants to have his feelings hurt.

Stuart: Ready?
Denise: You sure I didn't need to see Paddington 1?
Stuart: He's a bear, he talks, no one knows why. You're all caught up.

Beverly Hofstadter: Yeah, that's a fair point. I hadn't considered your influence. Perhaps tomorrow I could observe the two of you together?
Penny: Uh, "observe"? [laughs] What is going on?
Beverly Hofstadter: I'm just visiting with my son and doing research for my book on how various parenting strategies affected my children as adults.
Leonard: This has all been work to you? Hanging out with me and coming to my lab, I- I thought we were enjoying each other's company, but it was just research.
Beverly Hofstadter: I was enjoying it; you know I love research.

Beverly Hofstadter: So it's just you?

Leonard: I am so stupid. I-I actually thought my mom was genuinely proud of me. It turns out, she's just using me as research for her new book.
Sheldon: Oh, what a relief. I thought Beverly was mad at me. Thank you, Leonard. That is a weight off my shoulders.

Stuart: Look, I was scared to move in, but that was a mistake because she is amazing and I really want to live with her. So think you'd be willing to find another place?
Mitch: Do you love her?
Denise: Oh, we haven't really said that yet.
Stuart: Yeah, I do.
Mitch: Don't say it to me, say it to her.
Stuart: I love you.
Denise: I love you, too.
Mitch: Now both of you say it to me.

Penny: Never? Isn't that usually when you go to the gym?

Bernadette: That's whose handwriting that is.
Raj: I've noticed she's been over here a lot lately.
Howard: You know how you noticed that? Because you're over here a lot lately.

Sheldon: Ah, Beverly, there you are.
Beverly Hofstadter: Sheldon, how nice to see you. Leonard was just showing me his new lab.
Sheldon: Oh, yes, experimental physics, the carpentry of the science world.

Leonard: And this is a high-pulse laser with a BBO crystal. It's pretty cool. It emits photons in discrete bursts.
Beverly Hofstadter: Huh. Very impressive.
Leonard: But?
Beverly Hofstadter: But what, dear?
Leonard: Oh, I don't know. It's just, usually there's a "but" followed by something that makes me feel bad.

Leonard: It made me really happy. We haven't always had the easiest relationship. But, well, looking back, I guess you were just trying to push me to be the best version of myself.
Beverly Hofstadter: So you would say that my parenting strategies, although difficult at times, directly contributed to your current success?
Penny: Well, I may have had a little something to do with it. I mean, how often do you wear your superhero underwear now?
Leonard: Only Fridays and my birthday.
Penny: Yeah, that was all me. That was me.

Leonard: Penny, can I have a moment alone with my?
Penny: Yep, bye.