He's either the most stupid man in the world or too naive to be without a keeper.

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

You can hear this line at 00:28:53 in the Blu-ray version of the movie.

Quote context

[...]

- Maybe not, but you ain't been the same since.

- Ain't. Since what?

- Since he proposed to you.

- Oh, bah!

- Bah, yourself. You can't tell me you was so mad.

- No, I'll admit I wasn't.

- It was the other fella's fault. I was drunk.

- He's either the most stupid man in the world or too naive to be without a keeper.

- The voting's over! They're cheering for Will!

- How much did he win by, dad?

- Cantrell didn't win.

- That high-heeled cowboy is the new marshal.

[...]