The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to — and time for a long succession of small mutations.
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The secrets of evolution are death and time—the deaths of enormous numbers of lifeforms that were imperfectly adapted to the environment

— and time for a long succession of small mutations.
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More “Carl sagan” Quotes

And what greater might do we possess as human beings than our capacity to question and to learn? — Ann Druyan
I don't think science is hard to teach because humans aren't ready for it, or because it arose only through a fluke, or — Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark
Arguments from authority carry little weight – authorities have made mistakes in the past. They will do so again in the — Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark
If it takes a little myth and ritual to get us through a night that seems endless, who among us cannot sympathize and un — Carl Sagan
Can you be sure that others have not come before you and destroyed the pristine state of the native myth? Can you be sur — Carl Sagan, Broca's Brain: Reflections on the Romance of Science
It is very difficult to evolve by altering the deep fabric of life — any change there is likely to be lethal. But fundamental change can be accomplished by the addition of new systems on top of old ones.
CARL SAGAN SAID that if you want to make an apple pie from scratch, you must first invent the universe. When he says “fr — Nicola Yoon, The Sun Is Also a Star
I worry that, especially as the Millennium edges nearer, pseudoscience and superstition will seem year by year more temp — Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark
We are a way for the cosmos to know itself — Carl Sagan
The American and Russian capabilities in space science and technology mesh — they interdigitate. Each is strong where the other is weak. This is a marriage made in heaven - but one that has been surprisingly difficult to consummate.
Billions of years from now our sun, then a distended red giant star, will have reduced Earth to a charred cinder. But th — Carl Sagan
Ten long trips around the sun since I last saw that smile, but only joy and thankfulness that on a tiny world in the vas — Ann Druyan