his spirit survived for even longer
I'm not sure if a person's spirit existing counts as him being alive, since in order to be a spirit, one has to be dead.
"There is something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty." -Winston Churchill
"For of all sad words of tongue or pen, The saddest are these: 'It might have been!'" -John Whittier
"Apathy is death." -Kreia