Howard: That would be great. I'd love for things between me and mom to get back to normal.
Bernadette: Well, normal's a strong word, but sure.

Penny: What's up?
Sheldon: I'm mad at Amy.
Penny: Did you she leave pit stains in your favorite crop top, too?

Penny: Besides, aren't you the one who says there's nothing more important than the advancement of science?
Sheldon: No, I said there's nothing more important than me advancing science.

Sheldon: Let it go? I have heard that my whole life. Every time something upsets me, someone says let it go. Like it's my fault and it's not okay to feel the way I feel.

Sheldon: I've invented a science joke. Would you like to hear it?
Amy: Sure.
Sheldon: How many Edisons does it take to screw in a lightbulb?
Amy: How many?
Sheldon: Who cares? He stole the idea and doesn't deserve his own joke.

Amy: That's fascinating. I can't wait to read it.
Sheldon: Oh, me as well. Please email it to [email protected] Why .biz? Because I just gave you the business. And also bazinga.com was taken.

Sheldon: When I was doing string theory and hit a dead end, why didn't you try to help me?
Amy: I did. You said the only math biologists know is if you have three frogs and one jumps away, that leaves two frogs.
Sheldon: That's pretty funny. That does sound like me.

Sheldon: But that doesn't mean that you should be standing on street corners, handing out your math to whatever guy comes along.

Sheldon: You know Barry and I have a professional rivalry. You heard him, he told me to suck eggs. If we were friends, he would have suggested I suck something more pleasant.

Why are you laughing? Did you learn something?

Penny: When Leonard comes out, he is not gonna feel great, so please don't give him a hard time.
Amy: Penny has a good point. This is like the man in the supermarket with the goiter on his neck. Whatever you're thinking, just keep it to yourself.
Sheldon: It was like a grapefruit.
Amy: And I'm sure he knew that before you held a grapefruit up next to it!

Sheldon: I was not panicked, and I am not overly attached to Leonard.
Leonard: You were so worried that you smashed your face trying to check on me. You looove me.

Howard: Raj's parents probably split up because of Raj.
Bernadette: What?
Howard: You always say the children aren't to blame, but (holds up a Raj coaster; chuckles) come on!

Raj: (fanning himself) Oh, this heat is brutal!
Sheldon: As someone from the tropical sub-continent of India, you should know that fanning yourself in a humid environment only raises your body temperature.
Raj: Huh. That does explain why the servants used to look so hot while they were fanning me.

Raj: It all comes down to this.
(Raj shoots bottle in a trash can)
Howard: You happy? Now you can relax.
Raj: What kind of a scientist are you?! Everyone knows you've got to make two out of three!

Amy: Okay, that's enough.
Penny: What, no. I really want to know what happens. And Bernadette really, really, really wants to know what happens.