I actually don't think that there is a connection between the survival instinct and a hunger for immortality.
Neal StephensonThe Deliverator belongs to an elite order, a hallow subcategory. He's got esprit up to here. Right now, he is preparing to carry out his third mission of the night. His uniform is black as activated charcoal, filtering the very light out of the air. A bullet will bounce off its arachnofiber weave like a wren hitting a patio door, but excess perspiration wafts through it like a breeze through a freshly napalmed forest. Where his body has bony extremities, the suit has sintered armorgel: feels like gritty jello, protects like a stack of telephone books.
Neal Stephenson"Sorry," she said, "I got out as fast as I could, but I had to stay and socialize. Protocol, you know." "Explain protocol," Nell said. This was how she always talked to the Primer. "At the place weโre going, you need to watch your manners. Donโt say 'explain this' or 'explain that.'" "Would it impose on your time unduly to provide me with a concise explanation of the term protocol?" Nell said. Again Rita made that nervous laugh and looked at Nell with an expression that looked like poorly concealed alarm.
Neal Stephenson