“Not explaining science seems to me perverse. When you're in love, you want to tell the world.” ― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Science is not only compatible with spirituality; it is a profound source of spirituality.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“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.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“I have a foreboding of an America in my children's or grandchildren's time -- when the United States is a service and information economy; when nearly all the manufacturing industries have slipped away to other countries; when awesome technological powers are in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what's true, we slide, almost without noticing, back into superstition and darkness...

The dumbing down of American is most evident in the slow decay of substantive content in the enormously influential media, the 30 second sound bites (now down to 10 seconds or less), lowest common denominator programming, credulous presentations on pseudoscience and superstition, but especially a kind of celebration of ignorance”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Science is not only compatible with spirituality; it is a profound source of spirituality. When we recognize our place in an immensity of light‐years and in the passage of ages, when we grasp the intricacy, beauty, and subtlety of life, then that soaring feeling, that sense of elation and humility combined, is surely spiritual. So are our emotions in the presence of great art or music or literature, or acts of exemplary selfless courage such as those of Mohandas Gandhi or Martin Luther King, Jr. The notion that science and spirituality are somehow mutually exclusive does a disservice to both.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Books, purchasable at low cost, permit us to interrogate the past with high accuracy; to tap the wisdom of our species; to understand the point of view of others, and not just those in power; to contemplate--with the best teachers--the insights, painfully extracted from Nature, of the greatest minds that ever were, drawn from the entire planet and from all of our history. They allow people long dead to talk inside our heads. Books can accompany us everywhere. Books are patient where we are slow to understand, allow us to go over the hard parts as many times as we wish, and are never critical of our lapses. Books are key to understanding the world and participating in a democratic society.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

 

“But nature is always more subtle, more intricate, more elegant than what we are able to imagine.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“We've arranged a global civilization in which most crucial elements profoundly depend on science and technology. We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“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.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“If we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power. But if the citizens are educated and form their own opinions, then those in power work for us. In every country, we should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain decency, humility and community spirit. In the demon-haunted world that we inhabit by virtue of being human, this may be all that stands between us and the enveloping darkness.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“I worry that, especially as the Millennium edges nearer, pseudoscience and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive. Where have we heard it before? Whenever our ethnic or national prejudices are aroused, in times of scarcity, during challenges to national self-esteem or nerve, when we agonize about our diminished cosmic place and purpose, or when fanaticism is bubbling up around us - then, habits of thought familiar from ages past reach for the controls.

The candle flame gutters. Its little pool of light trembles. Darkness gathers. The demons begin to stir.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“An extraterrestrial being, newly arrived on Earth - scrutinizing what we mainly present to our children in television, radio, movies, newspapers, magazines, the comics, and many books - might easily conclude that we are intent on teaching them murder, rape, cruelty, superstition, credulity, and consumerism. We keep at it, and through constant repetition many of them finally get it.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the world. There is no such thing as a dumb question.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“There are wonders enough out there without our inventing any.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“In the way that skepticism is sometimes applied to issues of public concern, there is a tendency to belittle, to condescend, to ignore the fact that, deluded or not, supporters of superstition and pseudoscience are human beings with real feelings, who, like the skeptics, are trying to figure out how the world works and what our role in it might be. Their motives are in many cases consonant with science. If their culture has not given them all the tools they need to pursue this great quest, let us temper our criticism with kindness. None of us comes fully equipped.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Christianity may be good and Satanism evil. Under the Constitution, however, both are neutral. This is an important, but difficult, concept for many law enforcement officers to accept. They are paid to uphold the penal code, not the Ten Commandments … The fact is that far more crime and child abuse has been committed by zealots in the name of God, Jesus and Mohammed than has ever been committed in the name of Satan. Many people don’t like that statement, but few can argue with it.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Not explaining science seems to me perverse. When you're in love, you want to tell the world.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Now, what's the difference between an invisible, incorporeal, floating dragon who spits heatless fire and no dragon at all? If there's no way to disprove my contention, no conceivable experiment that would count against it, what does it mean to say that my dragon exists? Your inability to invalidate my hypothesis is not at all the same thing as proving it true. Claims that cannot be tested, assertions immune to disproof are veridically worthless, whatever value they may have in inspiring us or in exciting our sense of wonder. What I'm asking you to do comes down to believing, in the absence of evidence, on my say-so.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“One of the reasons for its success is that science has a built-in, error-correcting machinery at its very heart. Some may consider this an overbroad characterization, but to me every time we exercise self-criticism, every time we test our ideas against the outside world, we are doing science. When we are self-indulgent and uncritical, when we confuse hopes and facts, we slide into pseudoscience and superstition.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“But I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain, as tempting as that might be, is likely to get me into trouble.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Arguments from authority carry little weight – authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“I don't think science is hard to teach because humans aren't ready for it, or because it arose only through a fluke, or because, by and large, we don't have the brainpower to grapple with it. Instead, the enormous zest for science that I see in first-graders and the lesson from the remnant hunter-gatherers both speak eloquently: A proclivity for science is embedded deeply within us, in all times, places, and cultures. It has been the means for our survival. It is our birthright. When, through indifference, inattention, incompetence, or fear of skepticism, we discourage children from science, we are disenfranchising them, taking from them the tools needed to manage their future.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague, however unfulfilled, to support or prop up their beliefs. Yet has there ever been a religion with the prophetic accuracy and reliability of science? ... No other human institution comes close.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course. Microbiology and meteorology now explain what only a few centuries ago was considered sufficient cause to burn women to death.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Nevertheless, (Jefferson) believed that the habit of skepticism is an essential prerequisite for responsible citizenship. He argued that the cost of education is trivial compared to the cost of ignorance, of leaving government to the wolves. He taught that the country is safe only when the people rule.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark