It's the only way. We've got to clear this inlet.
4 seconds sound clip from the Creature from the Black Lagoon (1954) movie soundboard.
You can hear this line at 01:08:32.381 in the Blu-ray version of the movie.
Quote context
[...]
- You don't know what this can mean, David, to all of us.
- Mark, you're not going with me!
- I am.
- It's the only way. We've got to clear this inlet.
- Hey, that fellow down there, you think maybe he's a mosquito you can shoo away?
- We've got to take that chance.
- Oh, sure! What's an expedition without two martyrs, at least?
- I'm doing the only thing we can do. If we all just sit here, we'll all end up as Mark did.
[...]