- And you can give up any thoughts about your perpetual-motion machine.
- Never. It'll be a boon to humanity.
- No, it won't. It'll put millions of people out of work.

14 seconds sound clip from Batman (1966) - That Darn Catwoman (S2E40) TV Series.

You can hear this line at 00:16:21 in the Blu-ray version of the movie.

Quote context

[...]

- Pussycat, guard the money.

- And in the decrepit loft apartment of the world's richest and cheapest inventor, Pat Pending...

- I've got it. Ha-ha! I perfected the formula for our universal solvent.

- Oh, that's real good. But what are you going to keep it in? If it's really a universal solvent, it'll go right through every container.

- By George, you're right. I never thought of that.

- And you can give up any thoughts about your perpetual-motion machine.

- Never. It'll be a boon to humanity.

- No, it won't. It'll put millions of people out of work.

- What happens when parts don't need to be replaced anymore? Think of the machinists and lathe operators and folks like that who'd be on the breadline.

- Besides being a good valet, you're a genius.

- Well, at least I still have one thing. My money.

- I don't know, sometimes I think your money would be safer in a bank.

[...]