Martha Jones: I battle with textbooks.
The Tenth Doctor: I battle with monsters.
Martha Jones: I've tried to save money.
The Tenth Doctor: I've tried to save the universe.
Martha Jones: I'm going to be a doctor.
The Tenth Doctor: I *am* the Doctor.
Martha Jones: Well, let's hope this box is big enough for the both of us

Donna Noble: There are things waiting in the darkness. Creatures of metal, fire and blood. But he's out there, burning through time, facing a thousand dangers across the stars and never giving up. He looks like a man but he's a legend and his name is the Doctor. He'll come back to save us and this time I'm going to be ready. Then just like that...
Donna Noble, The Tenth Doctor: We'll be gone.