Jackie Tyler: I reckon you're mad. The pair of you. It's like you go looking for trouble.
Doctor: Trouble's just the bits in-between. It's all waiting out there, Jackie. And it's brand-new to me. All those planets, creatures and horizons, haven't seen them yet. Not with these eyes. And it is gonna be... fantastic.
Doctor: I should have stopped you.
Harriet Jones: What does that make you, Doctor? Another alien threat?
Doctor: Don't challenge me, Harriet Jones, 'cause I'm a completely new man. I could bring down your government with a single word.
Harriet Jones: You're the most remarkable man I've ever met, but I don't think you're quite capable of that.
Doctor: No. You're right. Not a single word. Just six.
Harriet Jones: I don't think so.
Doctor: Six words.
Harriet Jones: Stop it.
Doctor: Six. (to Alex): Don't you think she looks tired?
(Harriet Jones orders an attack at the Sycorax's ship, making the ship explode over the Earth...)
Doctor: That was murder.
Harriet Jones: That was defense. It's adapted from alien technology. A ship that fell to Earth ten years ago.
Doctor: But they were leaving.
Harriet Jones: You said yourself, Doctor, they'd go back to the stars and tell others about the Earth. I'm sorry, Doctor, but you're not here all the time. You come and go. It happened today. Mr. Llewellyn and the Major. They were murdered. They died right in front of me while you were sleeping. In which case, we have to defend ourselves.
Doctor: Britain's golden age.
Harriet Jones: It comes with a price.
Doctor: I gave them the wrong warning. I should have told them to run as fast as they can. Run and hide because the monsters are coming. The human race.
Harriet Jones: Are there many more out there?
Doctor: Ooh, not just Sycorax. Hundreds of species. Thousands of them. And the human race is drawing attention to itself. Every day you're sending out probes, messages and signals. This planet's so noisy. You're getting noticed, more and more. You better get used to it.
(The defeated Sycorax runs after Doctor to attack him from behind, Doctor throws satsuma at a button, making the Sycorax fall from the ship...)
Doctor: No second chances. I'm that sort of a man. (to the Sycorax gathering): By the ancient rites of combat, I forbid you to scavenge here for the rest of time. And when you go back to the stars and tell others of this planet, when you tell them of its riches, its people, its potential, when you talk of the Earth, then make sure that you tell them this: It is defended.
Sycorax: I demand to know who you are!
Doctor: I don't know! See, that's the thing, I'm the Doctor but beyond that, I just don't know. I literally do not know who I am. It's all untested. Am I funny? Am I sarcastic? Sexy? (winks at Rose) A right old misery? Life and soul? Right-handed, left-handed, a gambler, a fighter, a coward, a traitor, a liar, a nervous wreck? I mean, judging by the evidence, I've certainly got a gob. And how am I gonna react when I see this? A great big threatening button. A great big threatening button which must not be pressed under any circumstances.
Doctor: And you, Rose Tyler, fat lot of good you were. You gave up on me. Oh, that's rude. Is that the sort of man I am now? Am I rude? Rude and not ginger.
Doctor: We haven't got much time. If there's pilot fish then... Why is there an apple in my dressing gown?
Doctor: I'm having a neural implosion. I need...
Jackie Tyler: What do you need?
Doctor: I need...
Jackie Tyler: Just say. Tell me, tell me. Painkillers? Aspirin?
Doctor: I need...
Jackie Tyler: Codeine? Paracetamol? Oh, I don't know. Pepto-Bismol? Liquid paraffin. Vitamin C, vitamin D, vitamin E!
Doctor: I need...
Jackie Tyler: Is it food? Something simple. Bowl of soup? Nice bowl of soup? Soup and a sandwich? Oh, soup and a little ham sandwich?
Doctor: I need you to shut up.
Jackie Tyler: Oh, he hasn't changed that much.
Doctor: Here we are, then. London, Earth, the solar system, isn't it? Jackie, Mickey, blimey! No, no, no, no. Hold on. Wait there. What was I going to say? There was something I had to tell you. Something important. What was it? No, hold on. Hold on. Hold on. Oh! I know. Merry Christmas!
Doctor: Rose, it's me. Honestly, it's me. I was dying. To save my own life I changed my body. Every single cell, but... it's still me.
Rose Tyler: You can't be.
Doctor: Then how could I remember this? Very first word I ever said to you. Trapped in that cellar. Surrounded by shop window dummies.... oh... such a long time ago. I took your hand... I said one word... just one word, I said... "Run".
Rose Tyler: Doctor.
Doctor: Hello. And we never stopped, did we? All across the universe. Running, running, running... One time we had to hop. Do you remember? Hopping for our lives. Yeah? All that hopping? Remember hopping for your life? Yeah?! Hop? With the...