DOCTOR: Do you know how lonely you are? You live in a great, big, giant spaceship and there aren't any chairs! And you haven't even noticed because nobody ever comes round!

DOCTOR: We're binary.

DONNA: She's not, because the Doctor's…

DOCTOR: ..male…

DONNA: ..and female.

ROSE: And neither. And more.

TOSH: Owen, just stay calm.

OWEN: Oh, why should I do that? Where's the fun in that? I'm gonna rage my way to oblivion.

TOSH: Please don't.

OWEN: Why? Give me one good bloody reason why. One good reason why I shouldn't keep screaming.

TOSH: Because you're breaking my heart.

DOCTOR: I didn't expect to care for you as much as I did. That was my mistake. When it came to it, with the Web of Time hanging in the balance, having to make a choice between you and the universe, I'd say hang the Web of Time, you're more important. Let the universe rot. Charley, you're worth more than all that. I sacrificed myself for you, to save your life. And I did it gladly. I thought I'd never see you again. That it wouldn't matter so long as I knew you were safe.

CHARLEY: I don't understand. You're saying you did care for me, after all. That you loved me.

DOCTOR: Of course I loved you! I killed myself for you, didn't I? Of course I loved you. Of course I love you.

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

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

DOCTOR: What do you want me to be? Someone who knows exactly what he’s doing and has it all under control, or just some fellow who makes it up as he goes along, and still makes it happen? Which do you want it to be? Magic tricks, or magic?

CALDWELL: Are you some kind of scientist?

DOCTOR: I'm every kind of scientist.