Stein, Albert Einstein and others in “Unfinished Business”

Stein

Guten Morgen!

What is this? Some sort of prison? What am I doing in here?

Mick

Good question.

Stein

I'm sorry, I never had the opportunity to properly introduce myself. I'm Professor Martin Stein, like Einstein, minus the "Ein". There is so much I'd like to discuss with you, such as your paper on unified field theory.

I have not yet published my paper on unified fields theory. Who are you? Why have you abducted me?

Mick

The guys at the party wanted you to make an atomic bomb for the Führer.

No. Not even a man as mad as Adolf Hitler would want to create such a terrible weapon.

Stein

You yourself once said "two things are infinite: the universe and human stupidity."

And you are living proof of the latter!

Mick

He just called you stupid.

Now open this door and let me out!

Stein

We will, soon, I promise. We saved you from the Nazis. The least you could do is help us save New York.

From what? From some theoretical attack? Some eventuality that not even I could predict it? The only way you could... Mein gott! [in German] You're time travelers!

Stein

Yes, obviously you know.

I deduced it, Herr Doctor.

Stein

Perhaps you could deduce how the Germans managed to create a nuclear bomb...

Atomic.

Stein

...when you are the only man on earth capable of performing such a feat?

Yeah, that is correct. I am the only man.

Mick

Wait a minute. Are you saying there's some lady out there who can make an atomic bomb?

Wunderbar! Why am I talking to him when you are clearly the brains of the operation?