[Saito has been shot in the chest]
Cobb: How's he doing?
Ariadne: He's in a lot of pain.
Cobb: When we get down to the lower levels, the pain will be less intense.
Ariadne: And if he dies?
Cobb: Worst case scenario? When he wakes up, his mind is completely gone.
Saito: Cobb. I'll still honor the arrangement.
Cobb: I appreciate that, Saito, but when you wake up, you won't even remember that we had an arrangement. Limbo's gonna become your reality. You're gonna be lost down there so long that you're gonna become an old man.
Saito: Filled with regret.
Cobb: Waiting to die alone.
Saito: No. I'll come back. And we'll be young men together again.