[Voice-over, as the Doctor and Donna walk away] When you run with the Doctor, it feels like it'll never end. But however hard you try you can't run forever. Everybody knows that everybody dies and nobody knows it like the Doctor. But I do think that all the skies of all the worlds might just turn dark if he ever, for one moment, accepts it.
[The Doctor runs back and picks up River's sonic screwdriver]
Why? Why would I give her my screwdriver? Why would I do that? The thing is, future me had years to think about it. All those years to think of a way to save her, and what he did was give her a screwdriver! Why would I do that?! [peels back a panel to reveal a set of green lights like on the suits, realizing why his future self has given River the screwdriver] Oh, oh, oh! Look at that! I'm very good!
What have you done?
Saved her! [runs with River's consciousness in the screwdriver] Stay with me! You can do it! Stay with me! Come on!! You and me, one last run!
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