The Doctor: You betrayed me. You betrayed my trust, you betrayed our friendship, you betrayed everything I ever stood for. You let me down! Clara: Then why are you helping me? The Doctor: Why? Do you think I care for you so little that betraying me would make a difference?

— Steven Moffat

There are two events in everybody’s life that nobody remembers. Two moments experienced by every living thing. Yet no one remembers anything about them. Nobody remembers being born and nobody remembers dying. Is that why we always stare into the eye sockets of a skull? Because we’re asking, “What was it like?” “Does it hurt?” “Are you still scared?”.

— Steven Moffat

The universe is big. It's vast and complicated and ridiculous. And sometimes—very rarely—impossible things just happen, and we call them miracles.

— Steven Moffat

The universe is big, its vast and complicated, and ridiculous. And sometimes, very rarely, impossible things just happen, and we call them miracles. And that's the theory. Nine hundred years, never seen one yet, but this would do me.

— Steven Moffat

This was supposed to be yesterday. I was sitting on the Cardiff/London train, supposedly about to write this very column, and realizing something quite terrible. My head was entirely empty. A vast echoing void. Bigger on the inside, but with nothing in it. You could drop a pebble in my brain and wait for an hour to hear it land. No actually, you couldn't - that would be aggressive and unhelpful, so keep your damn pebbles to yourself.

— Steven Moffat

Well we've moved through the funfair a bit - we've done the rollercoaster, now we're on the ghost train.

— Steven Moffat

We're all stories, in the end.

— Steven Moffat

What's the point of being a grown-up if you don't get to be immature?

— Steven Moffat

When you run with the Doctor, it feels like it'll never end. But however hard you try you can't run forever. Everybody knows that everybody dies and nobody knows it is like the Doctor. But I do think that all the skies of all the worlds might just turn dark if he ever for one moment, accepts it. Everybody knows that everybody dies. But not every day. Not today. Some days are special. Some days are so, so blessed. Some days, nobody dies at all. (In the library, the Doctor walks back to the TARDIS. He stops, looking at the doors. Then he raises his hand, and stands there poised like that for a long moment. Finally, he snaps his fingers. The doors open. He smiles slowly and walks in, joining Donna. Then he snaps his fingers again, and the doors close. River's voice continues over this.) Now and then, every once in a very long while, every day in a million days, when the wind stands fair, and the Doctor comes to call... everybody lives.

— Steven Moffat

You have to take your own bold approach, and if you do, you will be rewarded with success. Or calamitous failure. That can happen too.

— Steven Moffat