It'll take more than a silly superstitious curse to scare us off.
4 seconds sound clip from Scooby-Doo, Where Are You! - Scooby Doo and a Mummy, Too (S1E12).
You can hear this line at 00:02:33.682 in the Blu-ray version of the episode.
Quote context
[...]
- A most ominous curse, I must say.
- Now, if you'll excuse me, Professor, it's time for me to take my leave.
- Well, thank you again, Dr. Najib.
- Well, do you kids still want to stay and help me tonight?
- It'll take more than a silly superstitious curse to scare us off.
- Hey, Professor, what kind of a crazy coin is this?
- It's part of an ancient mystery I haven't been able to solve yet.
- Well, could you solve how I can get a sandwich? I'm starving!
- Me, too!
- Why don't you kids run downtown and bring back some sandwiches? I'll buy.
[...]
Top rated lines from this movie
Listen to funny short quotes from Hanna-Barbera's 1969 TV series Scooby-Doo, Where Are You!, along with sound effects and clips.
Actors: Don Messick (Scooby-Doo), Casey Kasem (Shaggy Rogers), Frank Welker (Fred Jones), Nicole Jaffe (Velma Dinkley), Stefanianna Christopherson (Daphne Blake)
Matilda (1996) 
Easy Money (1983) 
Invincible Super Chan (1971) 
Immortal Combat (1994) 
The Pebble and the Penguin