Leonard: Do you remember when you were a kid and you'd watch Professor Proton?
Sheldon: Of course.
Leonard: Well, did he ever make you-- I don't know-- hate science and the people who do it?
Sheldon: What are you saying?
Leonard: I just think it would be better if your contempt for children wasn't so much in the foreground.
Sheldon: Well, you want me to lie?
Penny: Well, it's not lying. It's acting. Sheldon Cooper may not like kids, but Professor Proton loves them.
Sheldon: Interesting. You know, I hadn't really thought of it that way. It's similar to how I'm afraid of dogs, but my D&D character likes dogs, you know? But he's allergic, so he can't be around them.
Penny: Why don't we have a dog?

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: Until next week, this is Professor Proton saying, 01000010 01111001 01100101. That's "Bye" in ASCII binary, or good-binary.

Sheldon: Well, it should be a scientist I respect. You know, someone with a pleasing voice and symmetrical facial features.
Bernadette: Is he talking about himself?
Penny: If he's talking, he's talking about himself.

Amy: Well, what was wrong with it? You know, did you find it borderline psychotic? I mean, I liked that about it, but you guys discuss.