DOCTOR: Well! Tell me about your world, Klein. I mean, tell me about 1965.

KLEIN: You must have seen it for yourself.

DOCTOR: I’ve seen people learning how to be free, learning new experiences, new forms of self-expression, banding together to combat inequality and injustice! I can’t imagine that your world is very similar.

KLEIN: Are you trying to imply that my time shouldn’t come to exist? That Germany should never have won this war? You are wrong.

DOCTOR: Am I?

KLEIN: You want to change history!

DOCTOR: Not change it! Put it back on the right track!

KLEIN: According to whom?

DOCTOR: According to what I’ve seen.

KLEIN: And what about the world I’ve seen? The world of the future, Doctor. An efficient, peaceful, prosperous world. A golden age.

DOCTOR: BUILT ON HOW MANY CORPSES? Oh, I’m sure your trains run on time, Klein. But was it worth the bloodshed? Was it worth the slaughter of millions?

KLEIN: Yes.

DOCTOR: NO! It’s never worth it, Klein. There is no excuse for genocide!