He didn't say I was too dumb for this job, but that's what he meant.

6 seconds sound clip from the Dark Command (1940) movie soundboard.

You can hear this line at 00:27:43 in the Blu-ray version of the movie.

Quote context

[...]

- Folks, it's true. I don't know much about the law. Ain't had much book-learnin'.

- But the good lord gave me a nose for smellin' a horse thief a mile off.

- And what you need in these parts, is a marshal that's better at smellin' than spellin'.

(Audience laughing)

- Mr. Cantrell here says that I'm honest, that I ain't afraid of nothin'.

- He didn't say I was too dumb for this job, but that's what he meant.

- And he's right. I am dumb.

- I'm dumb enough to think that smart marshals do their shooting' first, their talkin' afterward.

- Folks, this country has more laws than there are ways to skin a skunk. Thousands of 'em. Why, back east, they tell me there's a law against spittin'.

- But remember this: before you can try 'em for anything, you gotta catch 'em.

[...]