"Somewhere, something incredible is waiting to be known."
"We can make a similar examination, but with greater uncertainty, of the extraterrestrial hypothesis that holds that a wide range of UFOs viewed on the planet Earth are space vehicles from planets of other stars."
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Source: Carl Sagan (1973). “Carl Sagan's Cosmic Connection: An Extraterrestrial Perspective”, p.200, Cambridge University Press
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"It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring."
"One of the saddest lessons of history is this: If we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. We’re no longer interested in finding out the truth. The bamboozle has captured us. It’s simply too painful to acknowledge, even to ourselves, that we’ve been taken. Once you give a charlatan power over you, you almost never get it back."
"The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff."
"Imagination will often carry us to worlds that never were. But without it we go nowhere."
"I don't want to believe. I want to know."