Penny: Well, maybe this is a part of Sheldon's personality he's been repressing. I mean, I think we dream about things we wish we could be in real life.
Amy: Really? What do you dream about?
Penny: Oh. Uh, being the wife of Leonard. Mostly that.
Leonard: I choose to believe 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?

Bernadette: One of the great things about being pregnant is drinking cranberry juice out of a wineglass and watching people freak out.

Sheldon: I call this meeting of the Council of Sheldons to order. Let's take roll. Science Sheldon?
Science Sheldon: Present.
Sheldon: Texas Sheldon?
Texas Sheldon: Howdy.
Sheldon: Fanboy Sheldon?
Fanboy Sheldon: Greetings.
Sheldon: Germaphobe Sheldon?
Germaphobe Sheldon: Say it, don't spray it.
Humorous Sheldon: Where's Jock Sheldon?
Sheldon: Not the time, Humorous Sheldon!

Sheldon: Why can't there just be one week each month for famous people to die?
Amy: Well, they've already arranged to die in threes. What more do you want from them?