A species has to become pretty intellectually advanced in order to grasp the concept of death in the abstract, and to dream up the idea of immortality. Long before that (in evolutionary terms) all species with brains have the survival instinct in some form. So, I am just saying that there are many existent proofs of species that have one, but not the other.

...your Web browser is Ronald Reagan.

Gold is the corpse of value.

Nothing is more important than that you see and love the beauty that is right in front of you, or else you will have no defense against the ugliness that will hem you in and come at you in so many ways.

To condense fact from the vapor of nuance.

Most of the brain's work is done while the brain's owner is ostensibly thinking about something else, so sometimes you have to deliberately find something else to think and talk about.

..this is just like life must be for about 99 percent of the people in the world. You're in this place. There's other people all around you, but they don't understand you and you don't understand them, but people do a lot of pointless babbling anyway. In order to stay alive, you have to spend all day every day doing stupid meaningless work. And the only way to get out of it is to quit, cut loose, take a flyer, and go off into the wicked world, where you will be swallowed up and never heard from again.