ROMANA: Kill every last person and Unity becomes just another dead rock. Like all the other dead rocks you've left in your wake.

DALEK: Negative. Unity is more than other worlds.

ROMANA: You mean it's your fuel source. And who's going to mine that fuel? There's a war on. You don't have Daleks to spare.

DALEK: We will spare enough lives to keep the mines in operation.

ROMANA: And who will shuttle the miners back and forth to the mines? Who will cook their meals? Who will look after their children? Who will sweep the streets, and wash the laundry, and fix the plumbing? Who will live?

DALEK: That is not our concern.

ROMANA: No, I thought not, somehow.

DALEK: Provide us with the location of your associates.

ROMANA: We've been here before though, and I will never betray those I love. Not ever. So what are you going to do about it?

DALEK: Exterminate.