First Doctor: You've saved him!
Twelfth Doctor: Both of them. Never hurts - a couple fewer dead people on the battlefield.
First Doctor: So that's what it means to be a doctor of war.
Twelfth Doctor: You were right, you know. The universe generally fails to be a fairy tale... but that's where we come in!
Captain: One thing you could possibly do for me, if you were very kind?
First Doctor: Oh, anything. Name it.
Captain: My family. Perhaps you could look in on them, from time to time?
First Doctor: We should be delighted. What's the name?
Captain: Lethbridge-Stewart. Captain Archibald Hamish Lethbridge-Stewart.
First Doctor: I shall make it my business.
Twelfth Doctor: You can trust him on that.