I found this video the other day and wanted to share it with you. It's Carl Sagan reading from his book, Pale Blue Dot: A Vision of the Human Future in Space, from the chapter titled A Universe Not Made For Us.
I read a Terry Pratchett book recently called Reaper Man (it was great, of course). In it, he said, "In the Ramtop village where they dance the real Morris dance, for example, they believe that no one is finally dead until the ripples they cause in the world die away - until the clock he wound up winds down, until the wine she made has finished its ferment, until the crop they planted is harvested. The span of someone's life, they say, is only the core of their actual existence."
In that sense, Carl Sagan is still very much alive.