The Doctor and Missy in “The Lie of the Land”

Even if that was the truth, the fact that you're suggesting it shows there's been no change. No hope, no point. We don't sacrifice because it's wrong. Because it's easy.

You know, back in the day, I burned an entire city to the ground just to see the pretty shapes the smoke made. I'm sorry your plus one doesn't get a happy ending. But like it or not, I just saved this world because I want to change. Your version of "good" is not absolute. It's vain and arrogant and sentimental. If you're waiting for me to become all that, I'm going to be here for a long time yet.