Robert

“Young Reinette: Monsieur, be careful!
The Doctor: It's just a nightmare, Reinette, don't worry, everyone has nightmares. Even monsters under the bed have nightmares!
Young Reinette: What do monsters have nightmares about?
The Doctor: Me!”
― Steven Moffat

“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.”
― Steven Moffat

“Madge: I don't know why I keep shouting at them.
The Doctor: Because every time you see them happy you remember how sad they're going to be. And it breaks your heart. Because what's the point in them being happy now if they're going to be sad later. The answer is, of course, because they are going to be sad later.
~ The Doctor, the Widow, and the Wardrobe”
― Steven Moffat

“It's hard to talk about the importance of an imaginary hero. But heroes ARE important: Heroes tell us something about ourselves.
History tells us who we used to be, documentaries tell us who we are now; but heroes tell us who we WANT to be.
And a lot of our heroes depress me.
But when they made this particular hero, they didn't give him a gun--they gave him a screwdriver to fix things. They didn't give him a tank or a warship or an x-wing fighter--they gave him a box from which you can call for help. And they didn't give him a superpower or pointy ears or a heat-ray--they gave him an extra HEART. They gave him two hearts! And that's an extraordinary thing.
There will never come a time when we don't need a hero like the Doctor.”
― Steven Moffat