One of my favourite lines in a film comes from the film 'Tuck Everlasting', which despite being made for children is quite profound in its themes.
One theme is living forever, and if we would really want to if we had the choice. At the end of the film a heartbroken Tuck ponders...
"Do not fear death, but rather the unlived life... You don't have to live forever. You just have to live".