Sheldon: I'm trying to come up with a new approach to dark matter, but people keep distracting me. First, my mother kept answering the phone when I called, even though she knew I was busy. And now you show up with my favorite shape of food - a circle made of triangles served in a square box.

Sheldon: Oh, look, they still have Far Side. Oh, I don't get that one.
Amy: Oh, he's pushing when he should be pulling.
Sheldon: Hmm. I don't think he belongs in that gifted school, then.

Leonard: What are you doing?
Penny: Making a boat. When I was a kid, my dad showed me how.
Leonard: Boy, you'll do anything to avoid reading.

Raj: Guys, it's under "Things to do this weekend."
Amy: I can't find it. What does it say?
Raj: That it's a thing to do this weekend.

Sheldon: Well, how nice. Everyone's doing impressive work.
Leonard: What have you been working on these days?
Sheldon: Whoa, whoa. Where'd that come from?
Leonard: Where did what come from?
Sheldon: (stammers) I try to be supportive, and you break out the hot lights and the rubber hose.
Leonard: I just asked what you've been working on.
Sheldon: Oh, my God, let it go. Do you believe this guy?

Sheldon: I have a confession. When I berated Leonard, it was a clever ruse to conceal the fact that I'm not working on anything.
Amy: Well, I think I speak for everyone when I say, "No!"

Amy: Well, maybe this is the perfect opportunity to take some time for yourself and refocus. I'm sure you'll find something you're excited about.
Sheldon: Thank you, Amy. I don't know what I'd do without you.
[cut to Amy entering Apartment 4A]
Amy: Hey, can I stay here? Sheldon kicked me out.

Sheldon: Okay. Scratch paper, check. Whiteboard, check. Chex Mix, check. And here we go.

Mary Cooper: Hello again.
Sheldon: Who did you see at the barbecue festival?
Mary Cooper: Mr. Watkins.
Sheldon: Really? You called me and interrupted my work to tell me that you ran into somebody you could plausibly run into? I'm sorry, Mother, I really need to focus here. I will speak to you next week.
Mary Cooper: Okay, sweetheart. I'll talk to you then.

Sheldon: (sighs) I thought Mr. Watkins moved to Florida.
Mary Cooper: He did. He was back visiting his son.
Sheldon: Oh, gosh darn it, that is interesting. Was it Tommy or Joe? I bet it was Joe, 'cause he and Tommy had a falling out over that time-share.

Raj: You guys do anything fun after dinner?
Leonard: Well, actually Amy came back over and we hung out. Did you know that we're both spelling bee champs? We stayed up for hours trying to stump each other.
Raj: Who won?
Leonard: Oh, she thought she had me with "appoggiatura" but I shut that down expeditiously. E-X-P-E-D-I-T-I-O-U-S-L-Y. Expeditiously.

Raj: Wow. I bet that made Penny take off all of her clothes. ... Put her pajamas on and then go to bed early.
Leonard: At, like, 9:00.

Howard: I don't want to be the one who breaks up the band. You know, maybe you should think about replacing me.
Raj: Okay.
Howard: I mean, I know it'll be hard since we-
Raj: Oh, I bet Bert could do it. He plays guitar. I'm gonna go ask him.

Leonard: I guess he forgot that I play the cello.
Howard: I-I don't think he did.

Leonard: Okay, I think it's ready.
Amy: Should we put on safety goggles?
Leonard: Well, the funnest fun is the safest fun, so yes.