Sheldon: Allow me to comfort you. At least you've got your health.
Penny: Really? That, that's it? That's comforting?
Sheldon: Um, uh, in a hundred years, you'll both be dead and it won't matter?
Penny: No. Come on, you're supposed to say, "Of course he misses you, the only reason he's partying is to cover up his pain."
Sheldon: Oh, no, I don't think that's true at all.

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.

Amy: It would be nice to be with a man who wants to know what's underneath my cardigan. FYI, it's another cardigan.

Sheldon: As rock and roll bad boy Paul Simon once said, "I am a rock. I am an i.....sland".

Raj: Who died and made you the king of moments?