TENTH DOCTOR: We must stop meeting like this.

FIFTH DOCTOR: (chuckles) No, we really must, I mean, it could literally tear the fabric of reality apart.

TENTH DOCTOR: Yes.

FIFTH DOCTOR: So we shouldn't.

TENTH DOCTOR: No.

FIFTH DOCTOR: Fun, though. At times.

TENTH DOCTOR: Yes. Yes, it was!

RANI: You know what I think? I think it's not over, because I don't think she's dead. I really don't. That's not just me being mad, cos I honestly think in my heart and soul that he came back for her. Right at the end, the Doctor came back for his Sarah Jane, and he said, shall we go? Out into the stars? One last trip? And she said, oh yes please. And I think they're out there now, Sarah Jane and the Doctor in the TARDIS, travelling through space and time forever, in a story that never ends.

LUKE: She's the one who told me that Sanjay was looking at me in that way, and she's the one who told me to go and talk to him. And now we've been married for five years. That's the greatest gift she ever gave me. I may have been created by the Bane, but Mum, she gave me life.

RUTH: (To the Thirteenth Doctor) Have you ever been limited by who you were before?

DOCTOR: Cos sometimes this team structure isn't flat. It's mountainous, with me at the summit in the stratosphere, alone, left to choose.

DOCTOR: Words matter! One death, one ripple, and history will change in a blink. The future will not be the world you know. The world you came from, the world you were created in won't exist, so neither will you.

FUGITIVE DOCTOR: Let me take it from the top. Hello, I’m The Doctor.

FUGITIVE DOCTOR: (To The Thirteenth Doctor) I'd quite like it if you got off my ship now.

DOCTOR: Humans. I think you forget how powerful you are. Lives change worlds. People can save planets, or wreck them. That's the choice. Be the best of humanity.

DOCTOR: We want certainty, security, to believe that people are evil or heroic. But that's not how people are. You want to know the secrets of existence? Start with the mysteries of the heart. I can show you everything if you stop being afraid of what you don't understand.

DOCTOR: Love, in all its forms, is the most powerful weapon we have. Because love is a form of hope. And like hope, love abides. In the face of everything.

DOCTOR: I'm the Doctor.

MABLI: A doctor of medicine?

DOCTOR: Well, medicine, science, engineering, candyfloss, LEGO, philosophy, music, problems, people, hope. Mostly hope.

DOCTOR: You have to use your imagination. Imagine the solution and work to make it a reality. Whole worlds pivot on acts of imagination.

DOCTOR: Come on, please. Give us this. It's all right, it's me! Stabilise. Come to Daddy. I mean Mummy.

DOCTOR: When people need help, I never refuse.

DOCTOR: Why are you calling me madam?

YASMIN: Because you're a woman.

DOCTOR: Am I? Does it suit me?

YASMIN: What?

DOCTOR: Oh yeah, I remember. Sorry, half an hour ago I was a white-haired Scotsman.

DOCTOR: There's this moment where you're sure you're about to die and then you're born. It's terrifying. Right now I'm a stranger to myself. There's echoes of who I was and a sort of call towards who I am. And I have to hold my nerve and trust all these new instincts. Shape myself towards them. I'll be fine. In the end. Hopefully. Well, I have to be, because you guys need help and if there's one thing I'm certain of, when people need help, I never refuse. Right? This is going to be fun.

GRAHAM: Don't be daft. There's no such thing as aliens. Anyway even if there was, they ain't going to be on a train in Sheffield.

DOCTOR: Come on, Ryan. Come on, Yaz. I'm calling you Yaz, cos we're friends now.

DOCTOR: Bit of adrenaline, dash of outrage, and a hint of panic knitted my brain back together. I know exactly who I am. I'm the Doctor. Sorting out fair play throughout the universe. Now please, get off this planet while you still have a choice.

DOCTOR: We’re all capable of the most incredible change. We can evolve while still staying true to who we are. We can honour who we’ve been and choose who we want to be next. Now’s your chance. How about it?

DOCTOR: Well, at least with something as simple as a punt nothing can go wrong. No coordinates, no dimensional stabilisers, nothing. Just the water, a punt, a strong pair of hands and the pole.

(Whereupon the pole gets stuck in the mud of the riverbed and the Doctor has to let it go. They drift on under a bridge.)

ROMANA: Oh, I do love the spring. All the leaves, the colours.

DOCTOR: It's October.

ROMANA: I thought that you said we were coming here for May week.

DOCTOR: I did. May week's in June.

ROMANA: I'm confused.

DOCTOR: So was the TARDIS.

ROMANA: Oh, I do love the autumn. All the leaves, the colours.

DOCTOR: Never be cruel. Never be cowardly. Hate is always foolish. Love is always wise. Always try to be nice, but never fail to be kind.