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  • Carl Sagan Quotes   592
  • Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had argued that humanity was divided into Greeks and everybody else, whom he called barbarians and that the Greeks should keep themselves racially pure. He thought it was fitting for the Greeks to enslave other peoples. But Erathosthenes criticized Aristotle for his blind chauvinism, he believed there was good and bad in every nation.
    • 5 years ago



    Tags : Carl Sagan Quotes , Greek Quotes , Humanity Quotes
  • If intelligence is our only edge, we must learn to use it better, to shape it, to understand its limitations and deficiencies -- to use it as cats use stealth, as katydids use camouflage -- to make it the tool of our survival.
    • 5 years ago



    Tags : Carl Sagan Quotes , Cat Quotes , Survival Quotes
  • If we could travel into the past, it's mind-boggling what would be possible. For one thing, history would become an experimental science, which it certainly isn't today. The possible insights into our own past and nature and origins would be dazzling. For another, we would be facing the deep paradoxes of interfering with the scheme of causality that has led to our own time and ourselves. I have no idea whether it's possible, but it's certainly worth exploring.
    • 5 years ago



    Tags : Carl Sagan Quotes , Past Quotes , Ideas Quotes
  • If you look at Earth from space you see a dot, that's here. That's home. That's us. It underscores the responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we've ever known.
    • 5 years ago



    Tags : Carl Sagan Quotes , Responsibility Quotes , Home Quotes