Penny: Whatever your secret is, I'm sure it's boring, so I'm not interested.
Leonard: It's not boring at all. You see, in higher order mathematics, there are certain sets of equations that...
Penny: Bored.
Leonard: Satisfied?
Sheldon: Hardly. Consider this unlikely but very plausible scenario. A young woman alone in the big city, her ridiculous dream of becoming an actress lies shattered about her.
Penny: Hey, wait a minute.
Howard: Well, hang on. Let's see where he's going.
Sheldon: Then it hits her. How is she going to survive? I mean, she has no prospects, no marketable skills. And then one day, she meets a group of geniuses and their friend Howard.
Howard: Hey...
Penny: Hang on. Let's see where he's going.

Penny: At one point, they had me figure out how to get a banana out of a puzzle box.
Leonard: Wait, Sheldon gave me a banana in a box. He was testing me, too.
Penny: Unbelievable.
Leonard: And how could a chimp even solve that? That was impossible.
Penny: Really? You couldn't get it out?

Leonard: If I take it off, Sheldon wins.
Penny: Sweetie, every night you don't kill him in his sleep, he wins.

Sheldon: Woman, you are playing with forces beyond your ken.
Penny: Yeah, well your Ken can kiss my Barbie.

Sheldon: I'm not saying that all senior citizens that can't master technology should be publicly flogged. But, if we made an example of one or two it might give the others incentive to try harder.

Raj: Ooh, Leonard is going all alpha nerd on Sheldon's ass.

Raj: Last night I had a dream we got so rich from the app, you and I bought matching side by side mansions, but there was a secret tunnel connecting your front yard to my back yard. What do you think that means?