The Terminator - Warning About the Terminator

I'm Reese, sergeant, TechCom DN38416 assigned to protect you. You've been targeted for termination...It's very important that you live....(The Terminator) He's not a man - a machine. A Terminator. A Cyberdyne Systems Model 101...Not a robot. A cyborg. A cybernetic organism...The Terminator's an infiltration unit, part man, part machine. Underneath, it's a hyper-alloy combat chassis - microprocessor-controlled, fully armored. Very tough. But outside, it's living human tissue - flesh, skin, hair, blood, grown for the cyborgs...The 600 series had rubber skin. We spotted them easy. But these are new, they look human. Sweat, bad breath, everything. Very hard to spot...

Then he famously and harshly warned her:

Cyborgs don't feel pain, I do. Don't do that again. (Sarah: "Just let me go!") 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!