We are wanderers... - Carl Sagan
youtube.com
youtube.com
Carl Sagan - Pale Blue Dot http://www.youtube.com/watch?v=p86BPM1GV8M
Also this is a fantastic mix using Carl Sagan samples from Cosmos.
I'm sorta a massive fan ^_^
Even so, his contribution to humanity was tremendous, we are very much diminished by his absence.
Not that I want to imply that I think he was suitable (I've never really considered that particular option) - but I do view with dismay what is typically seen as being required to be an effective politician and it is perhaps interesting to consider the alternatives.
Well, if you're going to deify someone, a good first criterion is to avoid anyone who does want the position :)
ooh, and I also recommend Jacob Bronowski's "The Ascent of Man", which is a little older, but it's a similar concept, with a similarly eloquent presenter, focusing on the history of mankind.