Quote from : Terminator 2: Judgment Day Movie

John Connor: You're not here to kill me. I figured out that for myself. So what's the deal?
The Terminator: My mission is to protect you.
John Connor: Yeah? Who sent you?
The Terminator: You did. Thirty-five years from now, you reprogrammed me to be your protector here, in this time.
John Connor: This is deep...