Stephanie: So are you a scientist like Howard?
Leonard: No one's a scientist like Howard.

Stephanie: (Breaking away from kissing) I'm sorry. I totally interrupted you. What, what, what were you saying?
Leonard: Just said Howard's a terrific guy. He's got a great sense of humor, he loves his mother, a lot, some people say too much.
Stephanie: I really like that you're such a loyal friend.
Leonard: Yeah, I am loyal. You know, if you look at the big picture.

Sheldon: Is there some problem?
Leonard: Yeah. Listen, I have to kinda sneak out for a while.
Sheldon: All right, goodbye.
Leonard: No, wait. If anyone asks you where I went, you don't know.
Sheldon: Where are you going?
Leonard: I can't tell you that.
Sheldon: Who would ask me?
Leonard: I can't tell you that, either.
Sheldon: So you brought me in here to inform me that you can't tell me where you're going and you can't tell me who might ask?
Leonard: Yeah, I really didn't think this through.

Sheldon: If someone, and of course, we don't know who this would be, does ask where you've gone, what should I say?
Leonard: I don't know. Just tell them I went to the office.
Sheldon: Are you going to the office?
Leonard: No.
Sheldon: Then how can I say it convincingly?
Leonard: Just say, Leonard went to the office.
Sheldon: All right. Leonard went to (dramatically) the office.
Leonard: What is? No, not like that! Just, Leonard went to the office.

Leonard: What was that?
Sheldon: You said be nice to Penny. I believe offering chocolate to someone falls within the definition of nice.
Leonard: It does. But in my experience, you don't.
Sheldon: There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.
Leonard: Yeah. Yeah, now that's you, obnoxious and insufferable.

Leonard: Oh, hey, on a related subject, are you embarrassed to have me around your friends?
Penny: Oh, my god, no. Why would you ask that?
Leonard: Well, you know, I just noticed I haven't really met any of them.
Penny: Sure you have.
Leonard: Well, yeah, no, I met the huge ex-boyfriend and the smaller, yet still larger than me, ex-boyfriend.

Penny: Leonard, look, if you want to meet my friends, that would be great. I just, you know, I didn't want you to be bored.
Leonard: I wouldn't be bored. Why would I be bored?
Penny: Well, 'cause they're not genius scientists.
Leonard: Penny, I like all sorts of people. In fact, some of my best friends aren't geniuses.
Penny: Like who?
Leonard: Okay, some of my Facebook friends aren't geniuses.

Penny: Well, then why don't you come over next Saturday and watch the game with us?
Leonard: Another football game?
Penny: They have them every week.
Leonard: Did not know that.
Leonard: Sure, sure, just I don't know much about football.
Penny: Oh, that's okay. A lot of the guys' girlfriends don't know football. They just kind of drink and talk in the kitchen.
Leonard: Great.

Leonard: Now, what is this sacks statistic they put up there?
Howard: All I know about Saks is, my mother shops there.
Leonard: (Thumbing through a guide book) Sacks, sacks
Sheldon: It's football nomenclature for when a quarterback is tackled behind the line of scrimmage.
Leonard: Huh. (Searching the book again) Scrimmage
Sheldon: The line of scrimmage is the imaginary transverse line separating the offense from the defense.

Leonard: Go! Go! Go! Go, go, go, go! Yes! Are you people watching this? Is this amazing or what?
Penny: Sweetie, that's a highlight from the '98 championship game.
Leonard: Oh. Did not know that.
Penny: How much beer have you had?
Leonard: None. Why?
Penny: Oh. I was just kind of hoping you were drunk. Now we're back live.
Leonard: Okay, yeah. I can see the difference.

Penny: Sheldon! (whistles)
Leonard: What are you doing? He's not a lost dog.
Penny: Hey, why don't you just let me find him while you sit there hitting your imaginary brake?
Leonard: The brake might be imaginary, but that stop sign you just ran wasn't.
Penny: What stop sign?
Leonard: Eyes on the road. Eyes on the road!

Sheldon: [inside the apartment] Oh, dear Lord, get away from me, you monster!
Penny: [in the hallway] What is that about?
Leonard: Well, he's smart and crazy enough, he may have actually created a monster.

Leonard: See? Now, that's the great thing. We're out as friends. This is not a date. Sex is off the table. So, let's go learn why hydroelectric power might not be the environmental bargain you think it is. Sorry. Spoiler alert.

Leonard: I'm going to get some fries. You want anything?
Penny: Uh, no, thanks.
Leonard: Are you sure? Because you always say no, and then you eat half my fries.
Penny: I just eat the little crispy ones you don't like.
Leonard: No, I love them. I save them for the end, but they're gone because you ate them. And why did I let you eat them?
Penny: To get sex.
Leonard: Exactly.
Penny: All right, I'd like an order of fries.
Leonard: Great. That'll be five dollars. I am having the best time. I'm so glad you suggested we do this.

Leonard: When you were telling Kevin about your acting career, did you mention your long-running role as Waitress in a local production of The Cheesecake Factory?