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Carl Sagan

"Extraordinary claims require extraordinary evidence."

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"Extraordinary claims require extraordinary evidence."

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Amber Hurdle

"Human psychology is the most mysterious thing in the world."

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Amber Hurdle

"Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not."

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Amber Hurdle

"In our world," said Eustace, "a star is a huge ball of flaming gas."Even in your world, my son, that is not what a star is, but only what it is made of."

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Amber Hurdle

"The universe rings true whenever you fairly test it."

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Amber Hurdle

"The whole of science is nothing more than a refinement of everyday thinking."

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Amber Hurdle

"Psychology is more concerned with identifying the degree of mental disorder and less with its cure!"

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Amber Hurdle

"A drop of water is not immortal; it can be resolved into oxygen and hydrogen. If, therefore, a drop of water were to maintain that it had a quality of aqueousness which would survive its dissolution we should be inclined to be skeptical. In like manner we know that the brain is not immortal..."

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Amber Hurdle

"Vast is the field of Science. The more a man knows, the more he will find he has to know."

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Amber Hurdle

"Scientists have an expression for hypotheses that are utterly useless even for learning from mistakes. They refer to them as being "not even wrong." Most so-called spiritual discourse is of this type."

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Amber Hurdle

"The work of science is to substitute facts for appearances, and demonstrations for impressions."

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Carl Sagan
"The chief deficiency I see in the skeptical movement is its polarization: Us vs. Them - the sense that we have a monopoly on the truth; that those other people who believe in all these stupid doctrines are morons; that if you're sensible, you'll listen to us; and if not, to hell with you. This is nonconstructive. It does not get our message across. It condemns us to permanent minority status."
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Carl Sagan
"You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility."
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Carl Sagan
"It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used in correct context - no human being has been reported to have learned dolphinese."
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Carl Sagan
"You can get into a habit of thought in which you enjoy making fun of all those other people who don't see things as clearly as you do. We have to guard carefully against it."
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Carl Sagan
"Why is the half of humanity with a special sensitivity to the preciousness of life, the half untainted by testosterone poisoning, almost wholly unrepresented in defense establishments and peace negotiations worldwide? [blurb on Daniella Gioseffi's _Women on War_; quoted in Carol Lynn Pearson's _The Ghost of Eternal Polygamy_]"
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Carl Sagan
"There is something stunningly narrow about how the Anthropic Principle is phrased. Yes, only certain laws and constants of nature are consistent with our kind of life. But essentially the same laws and constants are required to make a rock. So why not talk about a Universe designed so rocks could one day come to be, and strong and weak Lithic Principles? If stones could philosophize, I imagine Lithic Principles would be at the intellectual frontiers."
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Carl Sagan
"The visions we offer our children shape the future. It _matters_ what those visions are. Often they become self-fulfilling prophecies. Dreams are maps."
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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."
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Carl Sagan
"Consider again that dot [Earth]. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there - on a mote of dust suspended in a sunbeam."
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Carl Sagan
"Before we invented civilization our ancestors lived mainly in the open out under the sky. Before we devised artificial lights and atmospheric pollution and modern forms of nocturnal entertainment we watched the stars. There were practical calendar reasons of course but there was more to it than that. Even today the most jaded city dweller can be unexpectedly moved upon encountering a clear night sky studded with thousands of twinkling stars. When it happens to me after all these years it still takes my breath away."
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