DOCTOR: I just want to say, you know, you have never been very reliable.

IDRIS: And you have?

DOCTOR: You didn't always take me where I wanted to go.

IDRIS: No, but I always took you where you needed to go.

AMY: Look at you pair. It's always you and her, isn't it, long after the rest of us have gone. A boy and his box, off to see the universe.