- Come on, Long John. You could captain this ship.
- That I could, lad. Maybe someday I will.

11 seconds sound clip from the Muppet Treasure Island movie soundboard.

You can hear this line at 00:39:28.712 in the Blu-ray version of the movie.

Quote context

[...]

- So we must be heading southwest.

- Smart as paint you are, lad. Smart as paint.

- Now, that gets old Long John to wonderin'. Why would we be sailin' southwest?

- The scuttlebutt among the crew is that we're sailin' for buried treasure and someone on board has a map.

- 'Course, none of my concern, Jim. I'm just a ship's cook. Such matters are best suited to Captain Smollett. He runs this ship, not I.

- Come on, Long John. You could captain this ship.

- That I could, lad. Maybe someday I will.

- Moonlight swim?

- Okay.

- Oh, Smolly, my love for you is deeper than the deep, blue sea.

- Well, at least one of us is having a good time.

- Ah, Rizzo, it's not so bad.

[...]