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"In addition, human beings have, in the most recent few tenths of a percent of our existence, invented not only extra-genetic but also extrasomatic knowledge: information stored outside our bodies, of which writing is the most notable example."
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"Getting to know who you are is the most essential information that you can find out about yourself."

"You need to know the constituency you belong to...and that is revealed by your constituents. When your constituents are speaking in public and making of stories, your constituency can be "journalism"."

"No one knows it all. Asking questions about the things that you don't know doesn't make you unintelligent. You don't have a million years on earth to make all the mistakes in the world and learn from them. You can learn from better informed people, and save yourself the headaches that come from making too many avoidable mistakes."
Explore more quotes by Carl Sagan

"Religions are often state-protected nurseries of pseudoscience, although there's no reason why religions have to play that role. In a way, it's an artefact from times long gone."

"I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students."

"When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion."

"Pliny suggested that the ostrich, then newly discovered, was the result of a cross between a giraffe and a gnat. (It would, I suppose, have to be a female giraffe and a male gnat.) In practice there must be many such crosses which have not beenattempted because of a certain understandable lack of motivation."

"I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves."

"Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But the Voyager record will still be largely intact, in some other remote region of the Milky Way galaxy, preserving a murmur of an ancient civilization that once flourished - perhaps before moving on to greater deeds and other worlds - on the distant planet Earth."

"Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than all the grains of sand on all the beaches of the planet Earth."
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