Kripke: You guys ever use any toys?
Sheldon: Toys? I do have a model rocket next to my bed.
Kripke: A rocket? You're a freak! I love it!

Raj: I don't like bugs, okay. They freak me out.
Sheldon: Interesting. You're afraid of insects and women. Ladybugs must render you catatonic.

Sheldon: Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and as it always has, rock crushes scissors.

Sheldon: Why are you crying?
Penny: Because I'm stupid.
Sheldon: That's no reason to cry. One cries because one is sad. For example, I cry because others are stupid, and that makes me sad.

Kripke: My work would suffer too if I was getting laid all the time.
Sheldon: Yes, that is the reason. My work is suffering because of all the laid I am getting.
Kripke: You lucky bastard.
Sheldon: What can I say, you know? She enjoys my genitals. I am giving them to her on a nightly basis.

Kripke: You guys ever use any toys?
Sheldon: I do have a model rocket next to my bed.
Kripke: A rocket? You're a freak! I love it!

Bernadette: No, here's how love works. You're gonna return the machine or you can print out a working set of lady parts and sleep with those.
Howard: [pondering]
Bernadette: Oh, my God! Are you actually thinking about it?