8,157 Quotes About Science


  • Author Carl Sagan
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    Do you believe in UFOs?’ I’m always struck by how the question is phrased, the suggestion that this is a matter of belief and not of evidence. I’m almost never asked, ‘How good is the evidence that UFOs are alien spaceships?

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  • Author Carl Sagan
  • Quote

    In science we may start with experimental results, data, observations, measurements, ‘facts’. We invent, if we can, a rich array of possible explanations and systematically confront each explanation with the facts.

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