Carter: The Stargate isn’t made of regular stone. If given enough power, a wormhole forms within the circle and that allows us to travel to other worlds.
Rigar: "Wormhole?"
O’Neill: Giant worms. Huge.
Rigar: "Wormhole?"
O’Neill: Giant worms. Huge.
— Jack O'Neill, Stargate SG-1, "New Ground"
