Sheldon Cooper: How could you not find him?Leonard Hofstadter: Because he's hard to find! If he was easy to find, the books would be called "There's Waldo!"
Howard Wolowitz: Mom also had just gotten some news that might've upset her.Bernadette Rostenkowski: What?Howard Wolowitz: It's not important.Bernadette Rostenkowski: Come on, Howard, I'm going to be your wife. You can share anything with me.Howard Wolowitz: Oh, you'd think that, but no.Bernadette Rostenkowski: You told her we were going to get married and she had a heart attack?Howard Wolowitz: You can't take that personally.Penny: How else is she supposed to take it?Howard Wolowitz: What you've gotta keep in mind is that ever since my dad left, I've been the whole world to my mother. I mean, she'd be threatened by any woman who can give me what she can't.Bernadette Rostenkowski: You mean sexual intercourse?Howard Wolowitz: Well, when you say it like that, you make it sound creepy.Priya Koothrappali: What happened?Bernadette Rostenkowski: Howard's mother had a heart attack because I have sex with him and she can't!
Dr. Greg Pemberton: Well, that's the great thing about science. We all get to have our own opinions.Sheldon Cooper:Sheldon Cooper: I'm still not talking. That's impressive, right?
Sheldon Cooper: Penny?Sheldon Cooper: Penny?Penny: Penny?Sheldon Cooper: That's just wrong.