The Demon-Haunted World Quotes

“A statement: children who watch violent TV programmes tend to be more violent when they grow up. But did the TV cause the violence, or do violent children preferentially enjoy watching violent programmes? Very likely both are true. Commercial defenders of TV violence argue that anyone can distinguish between television and reality. But Saturday morning children’s programmes now average 25 acts of violence per hour. At the very least this desensitizes young children to aggression and random cruelty. And if impressionable adults can have false memories implanted in their brains, what are we implanting in our children when we expose them to some 100,000 acts of violence before they graduate from elementary school?”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Science is more than a body of knowledge; it is a way of thinking.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“A statement: children who watch violent TV programmes tend to be more violent when they grow up. But did the TV cause the violence, or do violent children preferentially enjoy watching violent programmes? Very likely both are true. Commercial defenders of TV violence argue that anyone can distinguish between television and reality. But Saturday morning children’s programmes now average 25 acts of violence per hour. At the very least this desensitizes young children to aggression and random cruelty. And if impressionable adults can have false memories implanted in their brains, what are we implanting in our children when we expose them to some 100,000 acts of violence before they graduate from elementary school?”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“We are all flawed and creatures of our times. Is it fair to judge us by the unknown standards of the future?”
― 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 key 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.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The technological perils that science serves up, its implicit challenge to received wisdom, and its perceived difficulty, are all reasons for some people to mistrust and avoid it.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“In college, in the early 1950s, I began to learn a little about how science works, the secrets of its great success, how rigorous the standards of evidence must be if we are really to know something is true, how many false starts and dead ends have plagued human thinking, how our biases can colour our interpretation of evidence, and how often belief systems widely held and supported by the political, religious and academic hierarchies turn out to be not just slightly in error, but grotesquely wrong.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“One of the great commandments of science is, “Mistrust arguments from authority.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Every now and then, I'm lucky enough to teach a kindergarten or first-grade class. Many of these children are natural-born scientists -
although heavy on the wonder side, and light on skepticism. They're curious, intellectually vigorous. Provocative and insightful questions bubble out of them. They exhibit enormous enthusiasm. I'm asked follow-up questions. They've never heard of the notion of a 'dumb question'.
But when I talk to high school seniors, I find something different. They memorize 'facts'. By and large, though, the joy of discovery, the life behind those facts has gone out of them. They've lost much of the wonder and gained very little skepticism. They're worried about asking 'dumb' questions; they are willing to accept inadequate answers, they don't pose follow-up questions, the room is awash with sidelong glances to judge, second-by-second, the approval of their peers. They come to class with their questions written out on pieces of paper, which they surreptitiously examine, waiting their turn and oblivious of whatever discussion their peers are at this moment engaged in.
Something has happened between first and twelfth grade. And it's not just puberty. I'd guess that it's partly peer pressure not to excel - except in sports, partly that the society teaches short-term gratification, partly the impression that science or mathematics won't buy you a sports car, partly that so little is expected of students, and partly that there are few rewards or role-models for intelligent discussion of science and technology - or even for learning for it's own sake. Those few who remain interested are vilified as nerds or geeks or grinds. But there's something else. I find many adults are put off when young children pose scientific questions. 'Why is the Moon round?', the children ask. 'Why is grass green?', 'What is a dream?', 'How deep can you dig a hole?', 'When is the world's birthday?', 'Why do we have toes?'. Too many teachers and parents answer with irritation, or ridicule, or quickly move on to something else. 'What did you expect the Moon to be? Square?' Children soon recognize that somehow this kind of question annoys the grown-ups. A few more experiences like it, and another child has been lost to science.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“El escepticismo tiene por función ser peligroso. Es un desafío a las instituciones establecidas. Si enseñamos a todo el mundo, incluyendo por ejemplo a los estudiantes de educación secundaria, unos hábitos de pensamiento escéptico, probablemente no limitarán su escepticismo a los ovnis, los anuncios de aspirinas y los profetas canalizados de 35.000 años. Quizá empezarán a hacer preguntas importantes sobre las instituciones económicas, sociales, políticas o religiosas. Quizá desafiarán las opiniones de los que están en el poder. ¿Dónde estaremos entonces?”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“You squeeze the eyedropper, and a drop of pond water drips out onto the microscope stage. You look at the projected image. The drop is full of life - strange beings swimming, crawling, tumbling; high dramas of pursuit and escape, triumph and tragedy. This is a world populated by beings far more exotic than in any science fiction movie...”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Brought before HCUA, Miller was chastised for the suggestion that Congressional investigations might have something in common with witch trials; he replied, “The comparison is inevitable, sir.” Thomas was shortly afterwards thrown in jail for fraud.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The values of science and the values of democracy are concordant, in many cases indistinguishable.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“But the history of science—by far the most successful claim to knowledge accessible to humans—teaches that the most we can hope for is successive improvement in our understanding, learning from our mistakes, an asymptotic approach to the Universe, but with the proviso that absolute certainty will always elude us. We will always be mired in error. The most each generation can hope for is to reduce the error bars a little, and to add to the body of data to which error bars apply. The error bar is a pervasive, visible self-assessment of the reliability of our knowledge.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The development of objective thinking by the Greeks appears to have required a number of specific cultural factors. First was the assembly, where men first learned to persuade one another by means of rational debate. Second was a maritime economy that prevented isolation and parochialism. Third was the existence of a widespread Greek-speaking world around which travelers and scholars could wander. Fourth was the existence of an independent merchant class that could hire its own teachers. Fifth was the Iliad and the Odyssey, literary masterpieces that are themselves the epitome of liberal rational thinking. Sixth was a literary religion not dominated by priests. And seventh was the persistence of these factors for 1,000 years.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“There was a most revealing rule: Slaves were to remain illiterate. In the antebellum South, whites who taught a slave to read were severely punished. “[To] make a contented slave,” Bailey later wrote, “it is necessary to make a thoughtless one. It is necessary to darken his moral and mental vision, and, as far as possible, to annihilate the power of reason.” This is why the slaveholders must control what slaves hear and see and think. This is why reading and critical thinking are dangerous, indeed subversive, in an unjust society.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“It is certainly true that all beliefs and all myths are worthy of a respectful hearing. It is not true that all folk beliefs are equally valid - if we’re talking not about an internal mindset, but about understanding of the external reality.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The sword of science is double-edged. Its awesome power forces on all of us, including politicians, a new responsibility – more attention to the long-term consequences of technology, a global and transgenerational perspective, an incentive to avoid easy appeals to nationalism and chauvinism. Mistakes are becoming too expensive.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The scientific way of thinking is at once imaginative and disciplined. This is central to its success. Science invites us to let the facts in, even when they don’t conform to our preconceptions. It counsels us to carry alternative hypotheses in our heads and see which best fit the facts. It urges on us a delicate balance between no-holds-barred openness to new ideas, however heretical, and the most rigorous skeptical scrutiny of everything—new ideas and established wisdom.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The Yale anthropologist Weston La Barre goes far as to argue that `a surprisingly good case could be made that much of culture is hallucination` and that `the whole intent and function of ritual appears to be... a group wish to hallucinate reality`.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“The theologian Meric Casaubon argued—in his 1668 book, Of Credulity and Incredulity—that witches must exist because, after all, everyone believes in them. Anything that a large number of people believe must be true.”
― 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”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“the consequences of scientific illiteracy are far more dangerous in our time than in any that has come before. It’s perilous and foolhardy for the average citizen to remain ignorant about global warming, say, or ozone depletion, air pollution, toxic and radioactive wastes, acid rain, topsoil erosion, tropical deforestation, exponential population growth. Jobs and wages depend on science and technology. If our nation can’t manufacture, at high quality and low price, products people want to buy, then industries will continue to drift away and transfer a little more prosperity to other parts of the world. Consider the social ramifications of fission and fusion power, supercomputers, data “highways,” abortion, radon, massive reductions in strategic weapons, addiction, government eavesdropping on the lives of its citizens, high-resolution TV, airline and airport safety, fetal tissue transplants, health costs, food additives, drugs to ameliorate mania or depression or schizophrenia, animal rights, superconductivity, morning-after pills, alleged hereditary antisocial predispositions, space stations, going to Mars, finding cures for AIDS and cancer. How can we affect national policy—or even make intelligent decisions in our own lives—if we don’t grasp the underlying issues?”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Frederick Douglass taught that literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom. But reading is still the path.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“We also know how cruel the truth often is, and we wonder whether delusion is not more consoling. HENRI POINCARÉ (1854–1912)”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Telepathy’ literally means to feel at a distance, just as ‘telephone’ is to hear at a distance and ‘television’ is to see at a distance. The word suggests the communication not of thoughts but of feelings, emotions. Around a quarter of all Americans believe they’ve experienced something like telepathy. People who know each other very well, who live together, who are practised in one another’s feeling tones, associations and thinking styles can often anticipate what the partner will say. This is merely the usual five senses plus human empathy, sensitivity and intelligence in operation. It may feel extrasensory, but it’s not at all what’s intended by the word ‘telepathy’. If something like this were ever conclusively demonstrated, it would, I think, have discernible physical causes -perhaps electrical currents in the brain. Pseudoscience, rightly or wrongly labelled, is by no means the same thing as the supernatural, which is by definition something somehow outside of Nature.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“[E]ven laws of Nature are not absolutely certain. There may be new circumstances never before examined – inside black holes, say, or within the electron, or close to the speed of light – where even our vaunted laws of Nature break down and, however valid they may be in ordinary circumstances, need correction.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Science is more than a body of knowledge; it is a way of thinking. 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 key 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.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Tyrants and autocrats have always understood that literacy, learning, books and newspapers are potentially dangerous. They can put independent and even rebellious ideas in the heads of their subjects.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Most of us are for freedom of expression when there’s a danger that our own views will be suppressed. We’re not all that upset, though, when views we despise encounter a little censorship here and there.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark