18 Quotes by Carl Sagan about knowledge




  • Author Carl Sagan
  • Quote

    Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is co-ordinated and used. Still, the amount of information to which we have accessed is one index of our intelligence.

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  • Author Carl Sagan
  • Quote

    Una científica compañera mía me contaba un reciente viaje que realizó a la meseta de Nueva Guinea, donde visitó una tribu todavía en la edad de piedra que apenas había tenido contactos con la civilización. Ignoraban lo que son los relojes de pulsera, las bebidas refrescantes y los alimentos congelados. Pero conocían el Apolo 11. Sabían que los humanos han pisado la Luna.

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  • Author Carl Sagan
  • Quote

    Humans may crave absolute certainty; they may aspire to it; they may pretend, as partisans of certain religions do, to have attained it. But the history of science — by far the most successful claim to knowledge accessible to humans — teaches that the most we can hope for is successive improvement in our understanding, learning from our mistakes, an asymptotic approach to the Universe, but with the proviso that absolute certainty will always elude us.

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