Do your work. Don't be profane and don't listen to profanity.

6 seconds sound clip from the The Cowboys (1972) movie soundboard.

You can hear this line at 00:48:57 in the Blu-ray version of the movie.

Quote context

[...]

- He captured a lady bright and dark. He took her in his arms and wrapped her in a warm quilt and carried her off.

- They came to a castle and he battered down the doors with the trunk of an oak tree and killed everybody in it! Just so they could rest the night.

- Later, while she slept, he walked the parapets and became a king.

- Is that true?

- If it isn't, it ought to be.

- Blow out those lamps! You, that lamp!

- Do your work. Don't be profane and don't listen to profanity.

- Wash your feet daily. Say your prayers nightly.

- You have to go out in the world and prove yourself. I guess that's right.

- God bless you, son.

- Don't be fresh.

- I won't.

- And don't come to any harm.

- Don't worry, I won't.

[...]