In my folly or naiveté I joined the Planetary Society on or very near the moment of its inception in 1980. I'm pretty sure a t-shirt is on its way to me as a thank you for my recent membership renewal.
Perhaps I stuck with them all these years because I enjoyed the letters I used to get from Carl Sagan and Isaac Asimov, which concluded with their very own signature stamp! And now I get regular e-mails from Bill Nye The Science Guy! I feel we are becoming good and close friends. Or it's because I respect the brilliant minds who devote themselves to exploration and achieving extraordinary feats of advanced scientific discovery, keeping a dream alive that intelligence isn't only a means to more quickly and efficiently destroy ourselves.
Anyhoop, the latest Planetary Post video is a Reading from The Book of Sagan, and I think it provides some valuable perspective.