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Carl Edward Sagan

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  • Carl Edward Sagan (born November 9, 1934death December 20, 1996) is an American astronomer, astrobiologist. He is known for his work in popularizing science. There have been great contributions to the advance of astrobiology and the advancement of the Search for Extraterrestrial intelligence (SETI). He is known worldwide for his award-winning television series Cosmos, which he has written and published in popular science books and writing. In addition, the 1985 novel, Contact, was transferred to the white screen in 1997 with the same name film played by Jodie Foster. He always advocated scientific method in his work. Myelodysplasia (Myelodysplastic syndrome), a kind of bone marrow neoplasm, died due to illness.



Carl Edward Sagan

  • Best Carl Edward Sagan Quotes
  • Quotes about astronomer, science and writer
  • “Somewhere, something incredible is waiting to be known.” 


  • Quotes about earth, perspective and space
  • “Look again at that dot. 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.
    The Earth is a very small stage in a vast cosmic arena. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot.

    Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

    The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

    It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we’ve ever known.” 


  • Quotes about humanity, individuality, love and mercy
  • “Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.” 



  • Quotes about atoms, cosmos, dna, sense of wonder and stars
  • “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.” 


  • Quotes about metaphysics, philosophy, science, sense of wonder and spirituality
  • “Science is not only compatible with spirituality; it is a profound source of spirituality.” 


  • Quotes about books, literacy and reading
  • “One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.” 


  • Quotes about science
  • “If you wish to make an apple pie from scratch, you must first invent the universe.” 


  • Quotes about books, reading and writing
  • “A book is made from a tree. It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles. One glance at it and you hear the voice of another person, perhaps someone dead for thousands of years. Across the millennia, the author is speaking, clearly and silently, inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another. Books break the shackles of time ― proof that humans can work magic.” 


  • Quotes about cosmology, delusion, knowledge, religion, science, truth and understanding
  • “For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.” 


  • Quotes about books, literature, reading, words and writing
  • “What an astonishing thing a book is. It’s a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But one glance at it and you’re inside the mind of another person, maybe somebody dead for thousands of years. Across the millennia, an author is speaking clearly and silently inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of working magic.”


  • Quotes about evidence, faith, science and skepticism
  • “Extraordinary claims require extraordinary evidence.” 


  • Quotes about agnosticism, humility, science, skepticism and truth
  • “Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us, or somebody who says everything in this book must be considered the literal truth and never mind the fallibility of all the human beings involved?” 


  • Quotes about politics, religion and science
  • “In science it often happens that scientists say, ‘You know that’s a really good argument; my position is mistaken,’ and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn’t happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.” 


  • Quotes about love
  • “For small creatures such as we the vastness is bearable only through love.” 


  • Quotes about imagination
  • “Imagination will often carry us to worlds that never were, but without it we go nowhere.” 


  • Quotes about aristocracy, capitalism, corruption, government, history, oppression, power, rationalization and society
  • “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.” 


  • Quotes about imagination and science
  • “It pays to keep an open mind, but not so open your brains fall out.” 



  • Quotes about afterlife, atheism and immortality
  • “I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But as much as I want to believe that, and despite the ancient and worldwide cultural traditions that assert an afterlife, I know of nothing to suggest that it is more than wishful thinking.” 


  • Quotes about optimism, seti and universe
  • “The universe is a pretty big place. If it’s just us, seems like an awful waste of space.” 


  • Quotes about cosmos, science, and thought provoking
  • “We are a way for the cosmos to know itself.” 


  • Quotes about connectedness, evolution, life, origin of life, perspective, philosophy, quantum physics, stardust and stars
  • “The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.” 






  • Quotes about absurdity, humor, reason, sagan and war
  • “The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five.” 


  • Quotes about atheism, education, religion and science
  • “I don’t want to believe. I want to know.” 


  • Quotes about philosophy, religion and science
  • “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.” 


  • Quotes about indifferent and universe
  • “The universe seems neither benign nor hostile, merely indifferent.”


  • Quotes about science
  • “The absence of evidence is not the evidence of absence.”


  • Quotes about reasons, science and thinking
  • “Science is a way of thinking much more than it is a body of knowledge.”


  • Quotes about love, science and the universe
  • “She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness is bearable only through love.” 


  • Quotes about humor, nerds, religion and science
  • “It’s a lazy Saturday afternoon, there’s a couple lying naked in bed reading Encyclopediea Brittannica to each other, and arguing about whether the Andromeda Galaxy is more ‘numinous’ than the Ressurection. Do they know how to have a good time, or don’t they?” 


  • Quotes about evolution, extinction, science and survival
  • “Extinction is the rule. Survival is the exception.”


  • Quotes about destruction, inspirational and truth
  • “If it can be destroyed by the truth, it deserves to be destroyed by the truth.” 


  • Quotes about beliefs and skepticism
  • “People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent people is to belittle or condescend or to show arrogance toward their beliefs.” 



  • Quotes about emptiness, humanity, loneliness, love and space
  • “In all our searching, the only thing we’ve found that makes the emptiness bearable is each other.” 


  • Quotes about history
  • “You have to know the past to understand the present.” 


  • Quotes about science and stars
  • “We are all star stuff.”


  • Quotes about life, organized-religion, religion, science and zealotry
  • “A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.”


  • Quotes about ecstasy and understanding
  • “Understanding is a kind of ecstasy” 


  • Quotes about books
  • “Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.” 


  • Quotes about humor and skepticism
  • “Observation: I can’t see a thing. Conclusion: Dinosaurs.” 


  • Quotes about humans, life, science, solar power and stars
  • “We are star stuff harvesting sunlight.” 


  • Quotes about beauty, sense of wonder and stars
  • “The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.” 


  • Quotes about astronomy, space and space exploration
  • “Across the sea of space, the stars are other suns.” 


  • Quotes about religion, science and skepticism
  • “Every aspect of Nature reveals a deep mystery and touches our sense of wonder and awe. Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition. They avoid rather than confront the world. But those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will penetrate its deepest mysteries.” 


  • Quotes about democracy, education, humanity, rights, science, skepticism and society
  • “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 Edward Sagan
Author: wik Date: 1:16 pm
Science and Mathematics

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