Sheldon: Well, it's true. The fact is, I feel really bad for Amy.
Leonard: Well, we all do. But just for fun, why do you?

Sheldon: I remember the song! It's called "Darlin'" by the Beach Boys! Oh, thank goodness! I'm not crazy! I don't have to take a pigeon as my bride!
Leonard: There goes our shot at him living on the roof.

Howard: Don't feel bad. Some day someone will be throwing out your work, too.
Leonard: That someone was Sheldon and the day was yesterday.

Professor Proton: Can I ask you a question?
Leonard: Yeah, sure.
Professor Proton: Why do you put up with Sheldon?
Leonard: Oh, you know because we're friends.
Professor Proton: Why?
Leonard: Wow, you ask really hard questions. Look, I know he can be aggravating, but what you have to remember is he's not doing it on purpose, it's just how he is. But he's also loyal and trustworthy and we have fun together.
Professor Proton: You know you're describing a dog?
Leonard: He did bite me once. But in his defense, I came up behind him while he was eating.
Professor Proton: They hate that.
Leonard: Sheldon is the smartest person I have met. He's a little broken and he needs me. And I guess I need him too.
Professor Proton: Why is that?
Leonard: Boy, you will not let this go, will you?

President Siebert: Look, it doesn't matter if they have popular support, we're gonna get the scientific community behind us.
Leonard: He's right, the Nobel Prize is about the work, and as your fellow scientists, we support you and Amy.
President Siebert: That's great, Scooby Gang.

President Siebert: Dr. Cooper, there you are. I just wanted to tell you not to worry about this Pemberton and Campbell publicity blitz.
Sheldon: Are you worried?
President Siebert: Not at all. Not even a little bit. [manic laugh]

Sheldon: Look at this. They posted another video. It's not even about science. They're on a celebrity bus tour.
Raj: Those are fun. I went on one and saw Tom Hanks talking to his gardener. He's even nice when you plant the wrong color azaleas.