In and out, thin and stout, that's what makes the world go round.
7 seconds sound clip from the The Sword in the Stone (1963) movie soundboard.
You can hear this line at 00:30:52.334 in the Blu-ray version of the movie.
Quote context
[...]
- You are living between two planes now, somewhere between the ceiling and the floor.
- Now, there are lots of ups and downs, like a helicopter.
- Yes. It... Oh. No, never mind.
- Now, that gives you the forward thrust. Now, come on, let's get a rhythm.
- In and out, thin and stout, that's what makes the world go round.
- For every up there is a down, for every square...
- Yes!
- Yeah.
- Fro.
- Fro?
- To and fro, stop and go. That's what makes the world go round. In and out, thin and stout...
[...]