Is mankind alone in the universe? Or are there somewhere other intelligent beings looking up into their night sky from very different worlds and asking the same kind of question?
Carl SaganRecent research shows that many children without enough to eat wind up with diminished capacity to understand and learn (โcognitive impairmentโ ). Children don't have to be starving for this to happen. Even mild undernourishment โ the kind most common among poor people in America โ can do it.
Carl SaganWe are prodding, challenging, seeking contradictions or small, persistent residual errors, proposing alternative explanations, encouraging heresy. We give our highest rewards to those who convincingly disprove established beliefs.
Carl SaganIn the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature.
Carl SaganI am not an atheist. An atheist is someone who has compelling evidence that there is no Judeo-Christian-Islamic God. I am not that wise, but neither do I consider there to be anything approaching adequate evidence for such a god. Why are you in such a hurry to make up your mind? Why not simply wait until there is compelling evidence?
Carl Sagan