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Carl Sagan, Dragons of Eden: Speculations on the Evolution of Human Intelligence Quotes: Natural selection has served as a kind of intellectual sieve, producing brains and intelligences increasingly competent to deal with the laws of nature.
         

Natural selection has served as a kind of intellectual sieve, producing brains and intelligences increasingly competent to deal with the laws of nature.


Carl Sagan, Dragons of Eden: Speculations on the Evolution of Human Intelligence
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Natural selection has served as a kind of intellectual sieve, producing brains and intelligences increasingly competent to deal with the laws of nature.
         



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Other quotes of Carl Sagan, Dragons of Eden: Speculations on the Evolution of Human Intelligence



Significant change might require those who are now high in the hierarchy to move downward many steps. This seems to them undesirable and is resisted.

Significant change might require those who are now high in the hierarchy to move downward many steps. This seems to them undesirable and is resisted.



And reading itself is an amazing activity: You glance at a thin, flat object made from a tree...and the voice of the author begins to speak inside your head. (Hello!)

And reading itself is an amazing activity: You glance at a thin, flat object made from a tree...and the voice of the author begins to speak inside your head. (Hello!)



the future belongs to those societies that treat new ideas as delicate, fragile and immensely valuable pathways to the future.

the future belongs to those societies that treat new ideas as delicate, fragile and immensely valuable pathways to the future.



Our difficulties in understanding or effectuatingcommunication with other animals may arise from our reluctance to grasp unfamiliar ways of dealing with the world.

Our difficulties in understanding or effectuatingcommunication with other animals may arise from our reluctance to grasp unfamiliar ways of dealing with the world.



Do dogs feel for humans something akin to religious ecstasy? What other strong or subtle emotions are felt by animals that do not communicate with us?

Do dogs feel for humans something akin to religious ecstasy? What other strong or subtle emotions are felt by animals that do not communicate with us?



Evolution is adventitious and not foresighted. Only through the deaths of an immense number of slightly maladapted organisms are we, brains and all, here today.

Evolution is adventitious and not foresighted. Only through the deaths of an immense number of slightly maladapted organisms are we, brains and all, here today.



Lashley also reported no apparent change in the general behavior of a rat when significant fractions—say 10 percent—of its brain were removed. But no one asked the rat of its opinion.

Lashley also reported no apparent change in the general behavior of a rat when significant fractions—say 10 percent—of its brain were removed. But no one asked the rat of its opinion.



Once intelligent beings achieve technology and the capacity for self-destruction of their species, the selective advantage of intelligence becomes more uncertain.

Once intelligent beings achieve technology and the capacity for self-destruction of their species, the selective advantage of intelligence becomes more uncertain.



The price we pay for the anticipation of our future is anxiety about it.

The price we pay for the anticipation of our future is anxiety about it.





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So if you're a gang member and you would normally be killing somebody, why not kill a white person?

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Quote Description


This page presents the quote "Natural selection has served as a kind of intellectual sieve, producing brains and intelligences increasingly competent to deal with the laws of nature.". Author of this quote is Carl Sagan, Dragons of Eden: Speculations on the Evolution of Human Intelligence. This quote is about brain, evolution, human-evolutionution, intelligence,.