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Definitions are temporary verbalizations of concepts, and concepts- particularly difficult concepts- are usually revised repeatedly as our knowledge and understanding grows.

Ernst Mayr

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Ernst Mayr
Age: 100 †
Born: 1904
Born: July 5
Died: 2005
Died: February 3
Biologist
Curator
Ornithologist
Philosopher
University Teacher
Writer
Zoologist
Kempten/Allgäu
Ernst Walter Mayr
E. Mayr
E. W. Mayr
Concepts
Usually
Grows
Understanding
Revised
Knowledge
Repeatedly
Difficult
Temporary
Definitions
Particularly

More quotes by Ernst Mayr

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The most consequential change in man's view of the world, of living nature and of himself came with the introduction, over a period of some 100 years beginning only in the 18th century, of the idea of change itself, of change over periods of time: in a word, of evolution.
Ernst Mayr
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Evolution ... is opportunistic, hence unpredictable.
Ernst Mayr
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To take an unequivocal stand, it seems to me, is of greater heuristic value and far more likely to stimulate constructive criticism than to evade the issue.
Ernst Mayr
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A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature.
Ernst Mayr
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Given the fact of evolution, one would expect the fossils to document a gradual steady change from ancestral forms to the descendants. But this is not what the paleontologist finds. Instead, he or she finds gaps in just about every phyletic series.
Ernst Mayr
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The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory but simply failed to ask the right questions.
Ernst Mayr
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It seems to me that for Darwin the pulsing of evolutionary rates was a strictly vertical phenomenon.
Ernst Mayr
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Indeed, I was unable to find any evidence whatsoever of the occurrence of a drastic evolutionary acceleration and genetic reconstruction in widespread, populous species.
Ernst Mayr
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There is more to biology than rats, Drosophila, Caenorhabditis, and E. coli.
Ernst Mayr
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In neither his definition nor the examples illustrating what memes are does Dawkins mention anything that would distinguish memes from concepts.
Ernst Mayr
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Evolution as such is no longer a theory for a modern author. It is as much a fact as that the earth revolves around the sun.
Ernst Mayr
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I have the honesty to say I'm an Atheist. There is nothing that supports the idea of a personal God.
Ernst Mayr
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New gene pools are generated in every generation, and evolution takes place because the successful individuals produced by these gene pools give rise to the next generation.
Ernst Mayr
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According to the concept of transformational evolution, first clearly articulated by Lamarck, evolution consists of the gradual transformation of organisms from one condition of existence to another.
Ernst Mayr
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I feel that one species, mankind, doesn't have the right to exterminate
Ernst Mayr
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A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down.
Ernst Mayr
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Life is simply the reification of the process of living.
Ernst Mayr
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Scientific progress consists in the development of new concepts.
Ernst Mayr
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It is curious how often erroneous theories have had a beneficial effect for particular branches of science.
Ernst Mayr
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In those early years in New York when I was a stranger in a big city, it was the companionship and later friendship which I was offered in the Linnean Society that was the most important thing in my life.
Ernst Mayr