Volker and Brody in “Unfinished Business”

"Also sprach Zarathustra." It's the theme from 2001: A Space Odyssey.

So why didn't you just say that?

Because that's not what it's called. It's called "Also sprach Zarathustra." Thus spoke Zarathustra. It's by Strauss.

Yeah, but nobody knows it by that name, so why not just say the name that people ...

Look you asked what my favourite piece of music was and I'm just telling you. That's what it is.

Yeah, I'm just saying ...

It's the one piece that reminds me of the very moment I wanted to be an astrophysicist.

Right, when you saw "2001"?

Yes.