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"As a consequence, geneticists described evolution simply as a change in gene frequencies in populations, totally ignoring the fact that evolution consists of the two simultaneous but quite separate phenomena of adaptation and diversification."
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"Clever nations are the ones who keep changing their governments! Because power must change hands otherwise it will get spoiled and rot!"
"But in the meantime I became accustomed to the writing life and it would be hard to change now - partly because of the salary cut if I went to my other love, teaching; and partly because I still have stories to tell, even though it isn't all that fun doing the work anymore."
"America was never designed to be fixed forever, but was meant to be fluid and evolving."
"Human beings are the only animal that thinks they change who they are simply by moving to a different place. Birds migrate, but it's not quite the same thing."
"A personality alters itself through a series of self-referential experiences. We are not the same as the day before. Much as a person can never set foot in exactly the same river on any given day, we are different each day. Yesterday made us, but the past cannot contain nor restrain us. We can never mentally scroll backward and be who we used to be. We must move forward in the stream of life until the day that our life force dries up and we return to dust."
"Scholars postulate that the only thing that does not change is the every varying world. Other renowned thinkers postulate that the natural state of all things is to remain the same. Perhaps both propositions are vital. Perhaps it is normal to resist change because it threatens our present state of being. Perhaps it is natural to attempt to preserve the status quo because we are part of the external world and we wish to persevere, not expire. Perhaps it is inevitable that we all change. The natural forces are impossible to blunt."
"In your winter you deny your spring."
Explore more quotes by Ernst Mayr
"All I claimed was that when a drastic change occurs, it occurs in a relatively small and isolated population."
"Living in an entirely different physical as well as biotic environment, such a population would have unique opportunities to enter new niches and to select novel adaptive pathways."
"I had found again and again that the most aberrant population of a species - often having reached species rank, and occasionally classified even as a separate genus - occurred at a peripheral location, indeed usually at the most isolated peripheral location."
"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."
"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."
"Most of them are doomed to rapid extinction, but a few may make evolutionary inventions, such as physiological, ecological, or behavioral innovations that give these species improved competitive potential."
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