Quotes: I Have Just One Thing to Say

Doctor: I have one thing to say to you. You know what it is.
Master: Oh, no you don't!
(later, after the Master has lost control)
Doctor: And you know what happens now. You wouldn't listen, 'cause you know what I'm going to say: I forgive you.
Doctor Who, "Last of the Time Lords"

After all this time...everything we saw, everything we lost...I have only one thing to say to you: BYE!
The Doctor to Davros, "The Stolen Earth"