DOCTOR: I thought that was non-diegetic.

DOCTOR: It's the end. But the moment has been prepared for.

DOCTOR: I say, what a wonderful butler. He's so violent.

DOCTOR: I feel disorientated.

SARAH JANE: This is the Disorientation Centre.

DOCTOR: That makes sense.

DOCTOR: But the final responsibility is mine, and mine alone. Listen, if someone who knew the future pointed out a child to you and told you that that child would grow up totally evil, to be a ruthless dictator who would destroy millions of lives, could you then kill that child?