- That spider, why are you afraid of it? Because it has eight legs? Because its mouth moves from side to side, instead of up and down? If it came towards you, what would you do?
- This.
- Exactly as you'd destroy anything you didn't understand.

— John Putnam (Richard Carlson)

19 seconds sound clip from the It Came from Outer Space movie soundboard.

You can hear this line at 01:01:22.437 in the Blu-ray version of the movie.

Quote context

[...]

- They're leaving tonight. They crashed here by mistake, and now they're fixing their ship to get out!

- They can't get out. They're buried under tons of earth.

- Now take me to Ellen.

- I tell you, she's safe as long as you don't interfere!

- Then why don't they come out in the open?

- Because they don't trust us. Because what we don't understand, we want to destroy.

- I kill only what tries to kill me.

- That spider, why are you afraid of it? Because it has eight legs? Because its mouth moves from side to side, instead of up and down? If it came towards you, what would you do?

- This.

- Exactly as you'd destroy anything you didn't understand.

- Don't you see? That's why they've been hiding behind other men's faces until they can clear out.

- You're wasting time. Are you going to tell me where they are or do I form a posse and run the desert with a net until we find them?

- Once before you wouldn't believe me.

- When are you going to stop being a badge and become a human being?

[...]