Thank you, Mr. Sack. Boy, you sure are smart.
3 seconds sound clip from the It's an Adventure, Charlie Brown movie soundboard.
You can hear this line at 00:06:36.483 in the Blu-ray version of the movie.
Quote context
[...]
- You're a good camp president, Mr. Sack.
- You know, Sack, that wasn't a bad breakfast.
- You're a good camp president, Sack.
- Mr. Sack, excuse me, but do you think I should sign up for a nature hike or swimming?
- Oh, swimming, definitely. Nature hikes are great, but learning to swim is a must.
- Thank you, Mr. Sack. Boy, you sure are smart.
- Years ago, there was a cartoon drawn by Frank Wing about fishing.
- That's very funny, Mr. Sack.
- I always liked that cartoon.
[...]