Now, if I was you...
4 seconds sound clip from the Dark Command (1940) movie soundboard.
You can hear this line at 00:21:53 in the Blu-ray version of the movie.
Quote context
[...]
- Well, you could try. Better for a young fella like you to be workin' with uncle Sam than agin' him.
- I can't read or write, you know that.
- Listen, you don't read and write a man into jail.
- Marshal's gotta know something. He's gotta have papers on his desk and things.
- Ain't that hard. Readin' and writin', just as pretty as anything you ever seen.
- You're young. Never too late to learn.
- Look kinda funny, won't it? Me sittin' there among all them kids?
- Yeah, well, don't worry about that.
- You and I will do our studying in the evenings, and that way, nobody'll know anything about it.
[...]