Jake

“Dalek: I will talk to the Doctor.
The Doctor: Oh will you? That's nice. Hello!
Dalek: The Dalek strategem nears completion. The fleet is almost ready. You will not intervene.
The Doctor: Oh really? Why's that, then?
Dalek: We have your associate. You will obey or she will be exterminated.
The Doctor: No.
Dalek: Explain yourself.
The Doctor: I said, "No."
Dalek: What is the meaning of this negative?
The Doctor: It means, "No."
Dalek: But she will be destroyed!
The Doctor: No! 'Cause this is what I'm gonna do. I'm gonna rescue her. I'm gonna save Rose Tyler from the middle of the Dalek fleet, and then I'm gonna save the Earth. And then—just to finish off—I'm gonna wipe every last stinking Dalek out of the sky!
Dalek: But you have no weapons, no defenses, no plan.
The Doctor: Yeah! And doesn't that scare you to death? Rose?
Rose: Yes, Doctor?
The Doctor: I'm coming to get you.”
― Russell T. Davies

“The Doctor: Amazing.
Nancy: What is?
The Doctor: 1941. Right now, not very far from here, the German war machine is rolling up the map of Europe. Country after country, falling like dominoes. Nothing can stop it, nothing. Until one tiny, damp little island says "No. No, not here." A mouse in front of a lion. You're amazing, the lot of you. I don't know what you do to Hitler, but you frighten the hell out of me.”
― Steven Moffat

“There's one tiny little gap in the universe left, just about to close. And it takes a lot of power to send this projection. I'm in orbit around a supernova. I'm burning up a sun just to say goodbye.”
― Russell T. Davies, Doctor Who: The Shooting Scripts

“Fourth Doctor: You know, the very powerful and the very stupid have one thing in common: they don't alter their views to fit the facts; they alter the facts to fit their views.”
― Chris Boucher