[after Sarah tries to escape and bites Reese's hand]
Kyle Reese: Cyborgs don't feel pain. I do. Don't do that again.
Sarah Connor: [weakly] Just let me go!
Kyle Reese: Listen, and understand! That Terminator is out there! It can't be bargained with. It can't be reasoned with It doesn't feel pity, or remorse, or fear. And it absolutely will not stop, ever, until you are dead.