Time travel is always more magical somehow when you go into the past. Traveling into the future is something you do, every day. You're just not going to get very far. So, I rather like the past travel.

The Doctor: Don't blink. Don't even blink. Blink and you're dead. Don't turn your back. Don't look away. And don't blink.

We're all stories, in the end.

It's a funny thing about stories. It doesn't feel like you make them up, more like you find them. You type and type and you know you haven't got it yet, because somewhere out there, there's that perfect thing -- the unexpected ending that was always going to happen. That place you've always been heading for, but never expected to go.

My priorities are where they should be, which is making really great, really exciting television.

The Doctor: I've seen bigger. Clara: Really? The Doctor: Are you joking? It's massive!

Sherlock Holmes can be wise and funny. He wasn't, at the beginning. But later on, he's got a bantering relationship with loads of people. He's got a wisdom that he didn't have in the early stage. But he stays on the mountain top, and he will die up there. He's not going to change that.