Watching John with the machine, it was suddenly so clear. The Terminator would never stop. It would never leave him, never hurt him, never shout at him or get drunk and hit him or be too busy to spend time with him. It would always be there and it would die to protect him. Of all the would-be fathers who came and went over the years this thing, this machine was the only one who measured up. In an insane world it was the sanest choice.
Sarah Connor @ Terminator 2: Judgment Day