DOCTOR: You've always been here. You never left. The Tardis never forgets. And neither did I.

PERI: I didn't forget you either.

DOCTOR: No.

PERI: Every night, I would look up at the stars and wonder which one you were spinning round in the Tardis, and I'd ask myself, "Will I ever see him again?"

DOCTOR: And here we are, older and wiser. Two adventurers and friends reunited across light years and time. It is so good to see you again.