Sallah: Indy, why does the floor move?
Indiana: Give me your torch. [He drops it in and sees why.] Snakes. Why'd it have to be snakes?
Sallah: Asps. Very dangerous. You go first.
Indy: There's a big snake in the plane!
Jack: Oh, that's just my pet snake Reggie.
Indy: I hate snakes, Jack! I HATE 'EM!
Jack: Oh, come on! Show a little backbone, will ya?
Belloq: Jones, do you realise what the ark is? It's a transmitter! It's radio for speaking to God, and it's within my reach!
Indiana: You wanna talk to God? Let's go see Him together. I've got nothing better to do.
Belloq: You and I are very much alike. Archeology is our religion, yet we have both fallen from the pure faith. Our methods have not differed as much as you pretend. I am but a shadowy reflection of you. It would take only a nudge to make you like me. To push you out of the light.
Indiana: Now you're getting nasty.
Sallah: Indy, there is something that troubles me.
Indiana: What is it?
Sallah: The Ark. If it is there, at Tanis, then it is something that man was not meant to disturb. Death has always surrounded it. It is not of this earth.
Belloq: How odd that it should end this way for us after so many stimulating encounters. I almost regret it. Where shall I find a new adversary so close to my own level?
Indiana: Try the local sewer.
Marion: I'll tell you everything!
Toht: Yes. I know you will.
Toht: Shoot them. Shoot them both.
Toht: Now, what shall we talk about?
Answer: Indy and Marcus Brody believed that the Ark needed to be studied. They certainly didn't want to put it back where it was found. They believed that the U.S. government would find the best archaeologists, researchers, and scientists in the world to study the Ark. They are both upset that instead, the government has decided to simply lock the Ark away. This is why Indy says, "Fools. They don't know what they've got there," as he is leaving the building.
BaconIsMyBFF