In response to the clip
http://philosophy.videosift.com/video/What-is-your-function-in-life
(and others http://www.youtube.com/results?search_query=%22survive+style%22&search=Search )

Let's ask our selves the question:
What is your function in life?
As a human being, now, on this blue planet.

I'd say to spread genes and ideas, respectively few (we are 6.7 billion already) and as much as possible - this videosift talk being one of them. Let's continue...