I think everyone else has quoted this paragraph:
"Listen to me, Daniel. There's a big honkin' gun aimed at the gate and a boatload of hostiles flying your way and I will start shooting them down to buy us time. I know you remember every fact you ever knew, I know that what you're missing is personal memories, not information. I know you've been faking it by substituting data for subjective recollection. This is a piece of data. I know it's in there. Over."
But then there's a reason for that ... it's perfect Jack-ish; betraying his own intelligence, and swiping away Daniel's defenses in one fell swoop.

Wonderful piece, thank you