June 10, 2012
"We go about our daily lives understanding almost nothing of the world. We give little thought to the machinery that generates the sunlight that makes life possible, to the gravity that glues us to an earth that would otherwise send us spinning off into space, or the atoms of which we are made and on whose stability we fundamentally depend. Except for children (who don’t know enough not to ask the important questions), few of us spend much time wondering why nature is the way it is; where the cosmos came from, or whether it was always here; if time will one day flow back backward and effects precede causes; or whether there are ultimate limits to what humans can know. There are even children, and I have met some of them, who want to know what a black hole looks like; what is the smallest piece of matter; why we remember the past and not the future; how it, if there was chaos early, that there is, apparently, order today; and why there is a universe."

— Carl Sagan

(Source: throughascientificlens)

4:16am  |   URL: http://tmblr.co/ZnEehvN6NQF6
(Notes: 281)
  
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