The Grapes of Wrath (1940)
John Carradine: Jim Casy
Casy : I wouldn't pray just for a old man that's dead, 'cause he's all right. If I was to pray, I'd pray for folks that's alive and don't know which way to turn.
Casy : Maybe there ain't no sin and there ain't no virtue, they's just what people does. Some things folks do is nice and some ain't so nice, and that's all any man's got a right to say.
Casy : Tom, you gotta learn like I'm learnin'. I don't know it right yet myself. That's why I can't ever be a preacher again. Preachers gotta know. I don't know. I gotta ask.
Casy : You don' know what you're a-doin'.