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  • Carl Sagan Quotes   592
  • Because men, compared to male chimps, have such relatively small testicles (large testicles indicate a species where many males mate, one after the other, with the same female), we might guess that promiscuous societies were uncommon in the immediate human past.
  • 5 years ago



    Tags : Carl Sagan Quotes , Past Quotes , Men Quotes
  • There are many hypotheses in physics of almost comparable brillance and elegance that have been rejected because they did not survive such a confrontation with experiment. In my view, the human condition would be greatly improved if such confrontations and willingness to reject hypotheses were a regular part of our social, political, economic, religious and cultural lives.
  • 5 years ago



    Tags : Carl Sagan Quotes , Religious Quotes , Views 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.
  • 5 years ago



    Tags : Carl Sagan Quotes , Believe Quotes , Two Quotes
  • 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.
  • 5 years ago



    Tags : Carl Sagan Quotes , Atheist Quotes , Believe Quotes
  • Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain. A sharp distinction between humans and 'animals' is essential if we are to bend them to our will, make them work for us, wear them, eat them — without any disquieting tinges of guilt or regret. It is unseemly of us, who often behave so unfeelingly toward other animals, to contend that only humans can suffer. The behavior of other animals renders such pretensions specious. They are just too much like us.
  • 5 years ago



    Tags : Carl Sagan Quotes , Pain Quotes , Regret Quotes
  • The reappearance of the crescent moon after the new moon; the return of the Sun after a total eclipse, the rising of the Sun in the morning after its troublesome absence at night were noted by people around the world; these phenomena spoke to our ancestors of the possibility of surviving death. Up there in the skies was also a metaphor of immortality.
  • 5 years ago



    Tags : Carl Sagan Quotes , Morning Quotes , Sunset Quotes
  • Goddard represented a unique combination of visionary dedication and technological brilliance. He studied physics because he needed physics to get to Mars. In reading the notebooks of Robert Goddard, I am struck by how powerful his exploratory and scientific motivations were - and how influental speculative ideas, even erroneous ones, can be on the shaping of the future.
  • 5 years ago



    Tags : Carl Sagan Quotes , Notebook Quotes , Motivation Quotes