Fun, that's the word I keep on using. That's the word I worry about when other writer's scripts get too dark. Optimistic. Fun. And to be optimistic and have fun there's got to be a darkness there. I think that's a very British attitude.

My God, that scene in Monster Inc. where the monsters realise that their entire world is founded on hurting children -look at that for a change! Two galumphing cartoon characters making a shattering realisation about their world and their role in sustaining it. A truly epic moment. It's stunning.

I love having debates with people when they are debates but some people, you just can't. Some people shouldn't be given the oxygen.

Rose Tyler: Can't you come through properly? The Doctor: Then the whole thing would fracture. The two universes would collapse. Rose Tyler: So?

Anything works, as long as you write it properly.

Rose:i love you Doctor:Quite right, and i guess if it's my last chance to say it... Rose Tyler... (the doctor fades, him in his TARDIS, with tear tracks and a tear running down his cheek)

*Throwing bread out of door* AND STAY OUT!