Quick Quote >>

O'Neill: "Look, I know I should know this by now. I swear it'll be the last time I ask. But these wormholes we go through, they're not always there, right?"
Carter: "No, Sir, they can only form between two open gates."
O'Neill: "What's with the 'worm' part? The worm thing? I...I don't get that."

--A Matter of Time