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Carl Sagan
Quote #72
Absence of evidence is not evidence of absence.
More from Carl Sagan
A millennium before Europeans were willing to divest themselves of the Biblical idea that the world was a few thousand years old, the Mayan…
All civilizations become either spacefaring or extinct.
Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term…
All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not …
A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds of dogma and to guara…
Anything else you're interested in is not going to happen if you can't breathe the air and drink the water. Don't sit this one out. Do some…
If we keep on with business as usual, the Earth will be warmed more every year; drought and floods will be endemic; many more cities, provi…
Arguments from authority simply do not count; too many authorities have been mistaken too often.
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