Leonard: Okay, if I may drill down to the bedrock of my question, why did you throw it out?
Sheldon: Because I have no interest in standing in the Rose Room of the Pasadena Marriott in front of a group of judgmental strangers, who wouldn't recognize true genius if it were standing in front of them giving a speech. Which, if I were there, it would be.

Penny: Is this your only tie?
Leonard: Ah. Technically yes, but, if you'll notice, it's reversible. So it works as two.
Penny: Oh, sweetie, I don't think it even works as one.

Leonard: You cannot possibly be that arrogant.
Sheldon: You continue to underestimate me, my good man.

Leonard: Okay, I'm going ask you one more time. We did the work together, let's present the paper together.
Sheldon: And I'm telling you for the last time, it's pandering, it's undignified, and bite me.

Leonard: A joke. Okay. How about this, um, okay, uh there's this farmer, and he has these chickens, but they won't lay any eggs. So, he calls a physicist to help. The physicist then does some calculations, and he says, um, I have a solution, but it only works with spherical chickens in a vacuum.

Penny: You should just talk to him, I'm sure you guys can work this out.
Sheldon: It's certainly preferable to my plan.
Penny: Which was?
Sheldon: A powerful laxative.

Leonard: Kandor was the Capital city of the planet, Krypton. It was miniaturized by Brainiac before Krypton exploded and then rescued by Superman.
Penny: Oh, nice!
Leonard: It's a lot cooler when girls aren't looking at it.

Leonard: Okay, let me put it this way, I'm doing it.
Sheldon: You can't. I'm the lead author.
Leonard: Oh, come on. The only reason you're the lead author is because we went alphabetically.
Sheldon: I let you think we went alphabetically to spare you the humiliation of dealing with the fact that it was my idea. Not to put too fine a point on it, but I was throwing you a bone. You're welcome.

Leonard: Excuse me, I designed the experiment that proved the hypothesis.
Sheldon: It doesn't need proving.
Leonard: So the entire scientific community is just supposed to take your word?
Sheldon: They're not supposed to, but they should.

Sheldon: Were you trying to impress Penny?
Leonard: No, no not at all. ... A little bit.
Sheldon: How'd that work out for you?
Penny: (entering the apartment) Leonard, ready to go?
Sheldon: Libido 1, Truth 0.

Sheldon: As I have explained repeatedly, unlike you, I don't need validation from lesser minds. No offense.
Leonard: Really, so why did you come?
Sheldon: Because I knew you’d screw this up.
Leonard: I didn't screw it up.
Sheldon: Oh, please. I admit, that spherical chicken joke, that was hilarious. But it was straight downhill from there.

Penny: Anyway, I was talking to Leonard this morning and I think he feels really bad about it.
Sheldon: Huh.
Penny: Well, how do you feel?
Sheldon: I don't understand the question.
Penny: Well I'm just asking if it's difficult to be fighting with your best friend.
Sheldon: Oh. I hadn't thought about it like that. I wonder if I've been experiencing physiological manifestations of some sort of unconscious emotional turmoil.
Penny: Wait, what?
Sheldon: I couldn't poop this morning.

Howard: I don't know, Sheldon, those topical conferences on Bowes-Einstein condensates parties are legendary.
Leonard: Forget the parties.
Howard: Forget the parties!? What a nerd!

Sheldon: If I'm not taking credit for our work, then nobody is!
Leonard: So, you admit that it's our work!
Sheldon: No, once again I'm throwing you a bone. And once again, you are welcome.
Howard: Oh no he didn't!

Penny: Here, why don't you put these on while I find a shirt and sport-coat to match.
Leonard: Great, be right back.
Penny: Well, where you going, just put them on.
Leonard: Here?
Penny: Oh, are you shy?
Leonard: No, I'm not shy.
Penny: Don't worry, I won't look.
Leonard: I know you won't look. Why would you look. There's nothing to see. Well, not nothing...
Penny: Sweetie, put the pants on.
Leonard: Putting them on.