Doctor: Fear. Loneliness. They're the big ones, Rose. Some of the most terrible acts ever committed have been inspired by them. We're not dealing with something that wants to conquer or destroy. There's a lot of things you need to get across this universe. Warp drive... Wormhole refractors...You know the thing you need most of all? You need a hand to hold.
Rose: [Seeing cat.] Oh! Aren't you a beautiful boy?
The Doctor: Thanks. I've been experimenting with back-combing...oh.
Rose: [Seeing him grimace.] What?
The Doctor: Nah, I'm not really a cat person. Once you've been threatened by one in a nun's wimple, it kind of takes the joy out of it.
Kel: You just took a council axe from a council van, and now you're digging up a council road! I'm reporting you to the council! [Rose finds the Isolus pod.]
Rose: It went for the hottest thing in the street: your tar!
Kel: What is it?
Rose: It's a spaceship! Not a council spaceship, I'm afraid.