The War Games

“No! Stop, you're making me giddy! No, you can't do this to me! No, no, no, no, no, no, no, no, no, no, no, no, no!”

DOCTOR: Goodbye, Zoe.

ZOE: Goodbye, Doctor. Will we ever meet again?

DOCTOR: Again? Now, Zoe, you and I know, time is relative, isn't it?