DOCTOR: Ugh! Do you see? This is why nobody likes you! You have to be mysterious all the time. That's why everyone leaves you. That is why you are always alone.

DOCTOR: Oh, there it is. Silly old universe. The more I save it, the more it needs saving. It's a treadmill.

(TARDIS bleeps)

DOCTOR: Yes, yes I know they'll get it all wrong without me.

(TARDIS bleeps and lights flash)

DOCTOR: Well I suppose... One more lifetime.... Won't kill anyone.

(The Doctor's hands glow with regeneration energy)

DOCTOR: Well, except me.

(Cloister bell rings)

DOCTOR: You wait a moment, Doctor. Let's get it right. I've got a few things to say to you. Basic stuff first: Never be cruel, never be cowardly, and never ever eat pears! Remember, hate is always foolish, and love is always wise. Always try to be nice, but never fail to be kind. Oh! And, you mustn't tell anyone your name. No one would understand it anyway. Except-

(The Doctor collapses to the floor)

DOCTOR: Except children. Children can hear it. Sometimes, if their hearts are in the right place and the stars are too, children can hear your name.

(The Doctor pulls himself up on the TARDIS console, struggling)

DOCTOR: But nobody else. Nobody else. Ever.

(The Doctor manages to stand)

DOCTOR: Laugh hard. Run fast. Be kind. Doctor, I let you go.

(The Doctor regenerates)

DOCTOR: You humans are so fragile, your lives so brief. Tiny splash of brilliant colour against thetime stream, then gone forever. Whereas I, I just go on, and on, and on, and on, and on, and on, and on, and on...

Her head turned towards him. 'Your blood smells funny.'

The Doctor was beginning to feel more and more light-hearted. 'That's because my blood is funny. Two leucocytes walk into a bar. The first one says "Do you serve subpoenas here?"' He trailed off. 'That joke doesn't even make sense,' he said worriedly.

DOCTOR: Me? I'm chance. The role of the dice that comes up seven. The straight flush. The fifth bingo number. Also, I'm from another planet. Don't ask me which planet. I've forgotten.

The Doctor led us up, into the fire that was not the fire of salvation but the sort that burns, with smoke and hurt and tortured bodies and death. He walked arm in arm with Turing, and they talked, probably about miracles and the mysteries of the universe, but I couldn’t hear them any more. And anyway, it was probably all in code.

I.M. FOREMAN: You’ve never been a woman, have you?

DOCTOR: I’m not sure I’ve ever even been a man.

BREGMAN: You want to go there? Why, for God’s sake?

DOCTOR: I’m half-stupid. On my mother’s side.

DOCTOR: I’m known as the Doctor.

STALLHOLDER: Some people will call themselves anything.

DOCTOR: I’d like to see a butterfly fit into a chrysalis case after it spreads its wings. Life depends on change, and renewal.

DOCTOR: Even after all this time he cannot understand. I dare not change the course of history. Well, at least I taught him to take some precautions. He did remember to look at the scanner before he opened the doors. Now they're all gone. All gone. None of them could understand. Not even my little Susan, or Vicki. And as for Barbara and Chatterton. Chesterton. They were all too impatient to get back to their own time. And now, Steven. Perhaps I should go home, back to my own planet. But I can't. I can't.

DOCTOR: History sometimes gives us a terrible shock, and that is because we don’t quite fully understand. Why should we? After all, we’re too small to realize its final pattern. Therefore don’t try and judge it from where you stand.

DOCTOR: Well, I can assure you, my dear Barbara, Napoleon would never have believed you.

IAN: Yes, Doctor, but supposing we had written Napoleon a letter, telling him, you know, some of the things that were going to happen to him.

SUSAN: It wouldn't have made any difference, Ian. He'd have forgotten it, or lost it, or thought it was written by a maniac.

BARBARA: I suppose if we'd tried to kill him with a gun, the bullet would have missed him.

DOCTOR: Well, it's hardly fair to speculate, is it? No, I'm afraid you belittle things. Our lives are important, at least to us. But as we see, so we learn.

IAN: And what are we going to see and learn next, Doctor?

DOCTOR: Well, unlike the old adage, my boy, our destiny is in the stars, so let's go and search for it.