The Doctor, Dorium and others in “The Wedding of River Song”

Why Lake Silencio? Why Utah?

It's a still point in time. Makes it easier to create a fixed point. And your death is a fixed point, Doctor. You can't run away from this.

[arrogantly] I've been running all my life, why should I stop?

Because now you know what's at stake. Why your life must end.

Not today.

What's the point in delaying? How long have you delayed already?!

Been knocking about. Bit of a farewell tour. Things to do, people to see. There's always more. I could invent a new colour, save the Dodo, join the Beatles. [On the phone] Hello, it's me! Get him, tell him we're going out and it's all on me except for the money and the driving! [To Dorium, boasting angrily] I have got a time machine, Dorium! It's all still going on! For me, it never stops! Liz the First is still waiting in a glade to elope with me! I could help Rose Tyler with her homework! I could go on all Jack's stag parties in one night!

Time catches up with us all, Doctor!

Well, it has never laid a glove on me! [On the phone again] Hello?

Doctor, I'm so sorry. We didn't know how to contact you. I'm afraid Brigadier Lethbridge-Stewart passed away a few months ago. Doctor?

[Shocked] Yes, yes.

It was very peaceful. Talked a lot about you, if that's any comfort. Always made us pour an extra brandy, in case you came 'round one of these days.

Doctor? What's wrong?

Nothing, I... just...[hangs up the phone, sighs, and pulls out the blue envelopes from his pocket]...it's time. It's time.