DOCTOR: Without hope. Without witness. Without reward.

DOCTOR: Sometimes the only choices you have are bad ones. But you still have to choose.

DONNA: I can't understand you. How many words? One. One word. Shake. Milk shake. Milk? Milk? No, not milk? Shake, shake, shake. Cocktail shaker. What do you want, a Harvey Wallbanger?

DOCTOR: Harvey Wallbanger?

DONNA: Well, I don't know.

DOCTOR: How is Harvey Wallbanger one word?

DOCTOR: There are some corners of the universe which have bred the most terrible things. They must be fought.