Sheldon Cooper: It's not just a date... it's a textbook optimization problem. There is a perfect date... just like there's a perfect room temperature and a perfect dessert.
Penny Hofstadter: Mm. There's no perfect dessert.
Sheldon Cooper: Yellow cake in the shape of a dinosaur with chocolate frosting, a scoop of vanilla ice cream on the side, not touching. You'll see. You'll have it at our wedding.
Bernadette Rostenkowski-Wolowitz: I'm obviously pregnant.
Sheldon Cooper: Well, you never said it to my face. And the last time I assumed a woman was pregnant, it did not go over well.
Penny Hofstadter: Yeah, I'm still mad at you.
Sheldon Cooper: You were drinking water instead of wine. What was I supposed to think?
Sheldon Cooper: Let me give you a better question. Here, um, "Dr. Cooper, I heard you were working on a top-secret project for the U.S. military. Why don't you tell us about that?" See, that's a great question.
Amy's colleague: Okay, what was that like?
Sheldon Cooper: Oh, I can't tell you that, it's top-secret.