"You're right," the Doctor thoughtfully conceded. "But you're also wrong. We are the only ones of our kind." Catching the Master's faded reflection in the glass pane of the window, the Doctor went on the explain, "Most Time Lords are content with their lives as stiff as their high collars. Observing Time, maintaining the status quo. Ushas, Rallon, Mortimus, and the rest of the Deca... they're all gone. You and I, we're the last of our kind. Rebels. Renegades. You're possibly the only one who knows what that's like."