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  • Carl Sagan Quotes   592
  • 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..... 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.
  • 3 years ago



    Tags : Carl Sagan Quotes , Responsibility Quotes , Home Quotes
  • The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared to a star, we are like mayflies, fleeting ephemeral creatures who live out their lives in the course of a single day.
  • 3 years ago



    Tags : Carl Sagan Quotes , Stars Quotes , Fleeting Quotes
  • An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God. I know of no such compelling evidence. Because God can be relegated to remote times and places and to ultimate causes, we would have to know a great deal more about the universe than we do now to be sure that no such God exists. To be certain of the existence of God and to be certain of the nonexistence of God seem to me to be the confident extremes in a subject so riddled with doubt and uncertainty as to inspire very little confidence indeed.
  • 3 years ago



    Tags : Carl Sagan Quotes , Atheist Quotes , Inspire Quotes
  • We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary process has stopped. Man is a transitional animal. He is not the climax of creation.
  • 3 years ago



    Tags : Carl Sagan Quotes , Animal Quotes , Men Quotes
  • There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises
  • 3 years ago



    Tags : Carl Sagan Quotes , Light Quotes , Years Quotes
  • If some good evidence for life after death were announced, I'd be eager to examine it; but it would have to be real scientific data, not mere anecdote. As with the face on Mars and alien abductions, better the hard truth, I say, than the comforting fantasy.
  • 3 years ago



    Tags : Carl Sagan Quotes , Atheist Quotes , Real Quotes
  • What counts is not what sounds plausible, not what we would like to believe, not what one or two witnesses claim, but only what is supported by hard evidence rigorously and skeptically examined. Extraordinary claims require extraordinary evidence.
  • 3 years ago



    Tags : Carl Sagan Quotes , Believe Quotes , Two Quotes
  • The Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were perfect and divine. The fundamental idea that the Earth is a planet, that we are citizens of the Universe, was rejected and forgotten.
  • 3 years ago



    Tags : Carl Sagan Quotes , Christian Quotes , Ideas Quotes