Especially the third one.
http://www.youtube.com/watch?v=zSgiXGELjbchttp://www.youtube.com/watch?v=XGK84Poeynkhttp://www.youtube.com/watch?v=vioZf4TjoUI A quote:
[Dawkins]
Matter flows from place to place
And momentarily comes together to be you
Some people find that thought disturbing
I find the reality thrilling
[Sagan]
As the ancient mythmakers knew
We're children equally of the earth and the sky
In our tenure on this planet, we've accumulated
Dangerous evolutionary baggage
We've also acquired compassion for others,
Love for our children,
And a great soaring passionate intelligence
The clear tools for our continued survival