Sheldon: Well, I hope you're hungry.
Amy: Oh, I'm starving.
Sheldon: Oh, good. Starvation is authentic to the time period. If you also have malaria and a deep distrust of Native Americans, we're really cooking with a woodstove.

Penny: You know, that documentary last night was actually better than I thought it would be.
Leonard: Really? Should've been about Samuel Morse the way they telegraphed that ending.
Penny: I already pretended to laugh at that joke once. Do I have to do it again?
Leonard: Yeah, I'd appreciate it. (chuckles)
Penny: (forced laugh) Samuel Morse. You kill me.

Sheldon: Leonard, can you drive me to work?
Leonard: Yeah, sure. Oh, hey, the guys and I were talking about going to see the Tesla coil at the observatory later on, if you want to join.
Sheldon: Oh, I'm sorry, I can't. I'm busy.
Leonard: Why? What are you doing?
Penny: Leonard, what are you doing? He said he can't go. Make a sad face, move on.

Penny: Uh, well, both of our jobs are going great.
Leonard: Sure. I mean, my Air Force project got taken away, and you're not crazy about selling pharmaceuticals. I'll just write down "still employed."

Howard: Hey, I barely know how to be a man myself. Now I have to teach someone?
Sheldon: Well, as the saying goes, those who can't, teach.

Bernadette: Hey, what are you two doing here?
Ruchi: We won't stay long. I just wanted to drop something off from me and the girls at work.
Bernadette: None of the girls at work like me enough to get me a gift.
Ruchi: Okay, so you'll know why everyone at the office has the same handwriting.

Leonard: Let's look at our pictures; that-that'll jog our memories.
Penny: What is that a picture of?
Leonard: Oh, uh, that's a mole on my back. I wanted to make sure it wasn't growing.
Penny: How'd you get a picture of your own back?
Leonard: Sheldon took it. We're kind of mole buddies.

Penny: Anyway, who cares what I think?
Amy: I do. You're the-the coolest, prettiest, best-dressed person in my life.
Penny: Okay, that would be flattering, except I know all the people in your life.

Sheldon: Look, not all science pans out. You know, we've been hoping super-symmetry was true for decades, and finally, we built the Large Hadron Collider, which is supposed to prove it by finding these new particles, and it-it hasn't. And maybe super-symmetry, our last big idea, is simply wrong.
Leonard: Well, that sounds awful. Now I get why everyone hates me.

Sheldon: Do you think they're right, Amy? Do you think I'm like Edison?
Amy: Sheldon, I don't think you're upset because of what kind of scientist they said you're like. I think you're upset because your friends' feelings got hurt.
Sheldon: You're right. I care too much about other people's feelings. It's always been my fatal flaw.
Amy: Sheldon, I don't think-
Sheldon: No, no, not now, Amy. I'm growing as a person.

Amy: I don't think what they called you is the point here.
Sheldon: Oh, yeah? How would you feel if I called you the name of a neuroscientist you didn't like?
Amy: Do you know the name of any neuroscientist?
Sheldon: Of course.
Amy: Not me?
Sheldon: Then no.

Penny: Hey, that's a cute picture. Isn't that the day we almost went to the beach?
Leonard: Memorial Day?
Penny: No, that was the day we almost went to the mountains.
Leonard: Oh. That's the great thing about California; you can almost go to the mountains and almost go to the beach in the same day.
Penny: Yeah.

Sheldon: You know whose fault this is?
Amy: I do. Yours.
Sheldon: No, my mother's. "Go make friends, Sheldon." What happens? 20 years later, they call me names.

Howard: Look at Nowitzki over there.
Leonard: I can't believe she tried to steal Sheldon from Amy.
Raj: You know what? I'm gonna go there and tell her that they're engaged now and that her little plan didn't work.
Howard: Because you're sticking up for Sheldon, or because you're still mad she rejected you?
Raj: Too far away, can't hear you.

Leonard: Oh, we had our second anniversary.
Penny: Uh, yeah, but we did kind of forget about it, so maybe just write "still married."