- What's the matter?
- He'll never get the answer that way. Let's see...

6 seconds sound clip from the The Day the Earth Stood Still (1954) classic radio play.

You can hear this line at 00:18:14 in the radio play.

Quote context

[...]

- I'll bet this is where he works. Look in there. Books all over. Blackboard's full of stuff.

- Aw, door's locked, too.

- Is it? Why, no, it isn't.

- Well, that's funny.

- We'll go in and wait for him. I'm sure he won't mind.

- Gee, just think... all the brains that goes on in here.

- What's all that stuff on the blackboard?

- It's a problem in celestial mechanics.

- What's the matter?

- He'll never get the answer that way. Let's see...

- Hey, it says, 'Don't erase, don't touch'!

- This is right. Check. Correct. Correct. And here's where he gets off the track. Well, we'll fix that. So... So.

- You must be an arithmetic teacher, I bet.

- 'Differentiate - the - equation.' There.

[...]