The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
Carl SaganOne trend that bothers me is the glorification of stupidity, that the media is reassuring people it's alright not to know anything. That to me is far more dangerous than a little pornography on the Internet.
Carl SaganHuman beings grew up in forests; we have a natural affinity for them. How lovely a tree is, straining toward the sky.
Carl SaganIf the greenhouse effect is a blanket in which we wrap ourselves to keep warm, nuclear winter kicks the blanket off.
Carl Sagan