- The Doctor: ...With Martha, like I said, it got...complicated. And that was all my fault. I just want a mate.
- Donna: You just want to mate?!
- The Doctor: I just want a mate!
- Donna: You're not mating with me, sunshine!
- The Doctor: A mate! I want A mate!
- Donna: Well, just as well, cos I'm not having any of that nonsense! You're just a long streak of nothing!
- Martha: It's like in the films! You step on a butterfly, you change the future of the human race!The
- Doctor: [Bemused] I'll tell you what, then: don't...step on any butterflies. What have butterflies ever done to you?
- Martha: What if...I dunno! What if I kill my grandfather?!
- The Doctor: Are you planning to?
- Martha: No.
- The Doctor: Well, then.
Good men don’t need rules. Today is not the day to find out why I have so many.
- The Doctor: People don't understand time. It's not what you think it is.
- Sally: Then what is it?
- The Doctor: Complicated.
- Sally: Tell me.
- The Doctor: Very complicated.
- Sally: I'm clever, and I'm listening, and don't patronise me because people have died and I'm not happy. Tell me.
- The Doctor: People assume that time is a strict progression of cause to effect... but actually, from a non-linear, non-subjective viewpoint, it's more like a big ball of wibbly-wobbly... timey-wimey... stuff.
- Rita: You are a medical doctor, aren't you? You haven't just got a degree in cheese-making or something?
- The Doctor: No, no, well, yes, both, actually.
- Rory: What's wrong with you? What has she done to you?
- The Doctor: Poisoned me, but I'm fine ... well, no. I'm dying. But I've got a plan.
- Amy: What plan?
- The Doctor: ... Not dying! See? Fine.
- The Doctor: Are you married, River?
- River Song: Are you asking?
- The Doctor: Yes.
- River Song: ...Yes.
- The Doctor: No, hang on, did you think I was asking you to marry me, or, or, or asking if you were married?
- River Song: Yes.
- The Doctor: No, but was that yes, or...yes.
- River Song: ...Yes.
- Craig: If you ever need me out of your hair, just give me a shout. [winks]
- The Doctor: [winks back, pause] ... Why would I want that?
- Craig: Well, in case you want to bring someone over? Like a girlfriend, or... [looks at the Doctor's clothes] boyfriend?
- The Doctor: Oh! Oh, yes, yes, I will. I will shout, something like... "I was not expecting this!"
- The Doctor: Oh, this is my friend River. Nice hair, clever, and has her own gun. And unlike me, she really doesn't mind shooting people. I shouldn't like that. Kinda do, a bit.
- River Song: Thank you, sweetie.
- The Doctor: I know you're team players and everything, but she'll definitely kill the first three of you.
- River: Oh, the first seven, easy.
- The Doctor: Seven, really?
- River: Oh, eight for you, honey.
- The Doctor: Stop it!
- River: Make me!
- The Doctor: Oh, maybe I will!
- Amy Pond : [tied to a chair] Is this really important, flirting? 'Cause I feel like I should be higher on the list right now!
The Doctor: Yes. Ok. Ok. Ok. Ok. Dalek fleet. A bit over 12,000 battle ships all armed to the teeth. Ahahh! But we’ve got surprise on our side! They’ll never expect three people to attack 12,000 battle ships cause we’d be killed instantly, so it would be a very short surprise. Forget surprise. [Hits his head with his sonic screwdriver]
