Linus knows what he's talking about. Linus knows what he's doing.
5 seconds sound clip from the It's the Great Pumpkin, Charlie Brown (1966) movie soundboard.
You can hear this line at 00:16:32.140 in the Blu-ray version of the movie.
Quote context
[...]
- What blockheads, sitting in a pumpkin patch in the middle of the night.
- You've missed trick-or-treat, and now, you're going to miss the Halloween party.
- What a way to spend Halloween!
- Just wait until the Great Pumpkin comes. He'll be here! You can bet on that!
- Linus knows what he's talking about. Linus knows what he's doing.
- I have my reputation to think of, you know.
- And just think of all the fun we're missing.
- Just look. Nothing but sincerity as far as the eye can see.
- Charlie Brown, you'll have to model for us.
[...]