Writing isn't just a job that stops at six thirty... It's a mad, sexy, sad, scary, ruthless, joyful, and utterly, utterly personal thing. There's not the writer and then me; there's just me. All of my life connects to the writing. All of it.

You’re far more likely to see a naked woman than a naked man. It’s only [seen as] rude because the rest of television is rather tame – it doesn’t actually talk about sex and our bodies and how we feel about them. I’m not out to shock.

Steven wrote to me today, saying, 'Don't you feel like sticking your head out of the window and yelling, "I DON'T KNOW WHAT I'M DOING!!!"' Yes, absolutely. Solidarity. Fear is always the same. Different worries with different scripts, but the same baseline fear.

Rose: My mum's here. The Doctor: Oh, that's just what I need! Don't you dare make this place domestic! Mickey Smith: You ruined my life, Doctor. [the Doctor turns and looks at him, irritated] They thought she was dead, I was a murder suspect because of you! The Doctor: [looks at Rose] See what I mean? Domestic! Mickey: I bet you don't even remember my name! The Doctor: Ricky. Mickey: It's Mickey! The Doctor: No, it's Ricky. Mickey: I think I know my own name! The Doctor: You think you know your own name? How stupid are you?

I hate the idea that I have to represent any particular section of society; I just write good telly, that's all.

Maybe that's when bad scripts are written, when you choose the theme first. I consider that I've something to say when I've thought of a person, a moment, a single beat of the heart, that I think is true and interesting, and therefore should be seen.

Cyber Leader: Daleks, be warned. You have declared war upon the Cybermen. Dalek Sec: This is not war - this is pest control! Cyber Leader: We have five million Cybermen. How many are you? Dalek Sec: Four. Cyber Leader: You would destroy the Cybermen with four Daleks? Dalek Sec: We would destroy the Cybermen with one Dalek! You superior in only one respect. Cyber Leader: What is that? Dalek Sec: You are better at dying.