Sheldon: I've made you breakfast. Juice, coffee, and pancakes in the shape of some of your favorite fictional characters. See, here's Frodo.
Leonard: You made Frodo pancakes?
Sheldon: Yeah, I used coconut shavings to do the hair on his feet. If you need to void your bladder before eating, I can keep them warm with this beret that I thoroughly laundered and pressed into service as a pancake cosy.
Leonard: Why are you doing this?
Sheldon: It's by way of an apology for my recent behaviour. I've had some time to reflect and I've come to realize that friendship is not an aggregation of written agreements. It's a result of two people respecting and caring for each other. Butterscotch scone?
Leonard: Thanks. It's good.
Sheldon: What you're tasting is respect and affection. And about a pound of Crisco. After you've finished breakfast, I thought we could spend the day watching the final season of Babylon 5 with director commentary.
Leonard: You hate Babylon 5.
Sheldon: I do. It fails as drama, science fiction, and it's hopelessly derivative. But you like it, and you're my friend.
Leonard: Okay, great. Still not taking you to Switzerland.
Sheldon: Drat. No Frodo for you.

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.

Leonard: What would you guys do if you were me?
Wolowitz: I would take Sheldon to Switzerland.
Leonard: Seriously?
Wolowitz: Absolutely. And I'd leave him there.

Sheldon: It was you. I touched you!
Penny: Happy Valentine's Day.

Sheldon: Hello.
Penny: Hello.
Sheldon: Ok, enough with the friendly banter. I believe you know why I am here.
Penny: Oh, I always figured it was to study us, discover our weaknesses, and report back to your alien overlords.
Sheldon: Yes amusing. Extraordinary intelligence might well appear extraterrestrial to you, but let me be more specific. I believe you know why I am here in the laundry room.