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The evolution of life, and the evolutionary origin of mankind, are scientifically established as firmly and completely as any historical event not witnessed by human observers. Any concession to anti-evolutionists, suggesting that there are scientific reasons to doubt the facticity of evolution, would be propagating a plain untruth.

Theodosius Dobzhansky

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Theodosius Dobzhansky
Age: 75 †
Born: 1900
Born: January 25
Died: 1975
Died: December 18
Academic
Biologist
Entomologist
Evolutionary Biologist
Geneticist
Naturalist
University Teacher
Writer
Zoologist
Theodosius Grygorovych Dobzhansky
Dobzhansky
Theodosius Dobschanskij
Fjodor Grigorjewitsch Dobzhanskij
T. G. Dobzhansky
T G Dobzhansky
T. Dobzhansky
T Dobzhansky
Dobzhansky T
Dobzhansky T.
Humans
Reasons
Firmly
Concession
Would
Evolution
Origin
Scientifically
Life
Completely
Plain
Untruth
Mankind
Established
Concessions
Events
Event
Witnessed
Doubt
Anti
Suggesting
Reason
Scientific
Evolutionary
Evolutionists
Human
Historical
Observers
Propagating

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Scientists often have a naive faith that if only they could discover enough facts about a problem, these facts would somehow arrange themselves in a compelling and true solution.
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No known human group... simply throw out its dead without any ritual or ceremony. In stark contrast, no animal practices burial of dead individuals of its own species.
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Marxists are more right than wrong when they argue that the problems scientists take up,. the way they go about solving them, and even the solutions they arc inclined to accept, arc conditioned by the intellectual, social, and economic environments in which they live and work.
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Evolutionary plasticity can be purchased only at the ruthlessly dear price of continuously sacrificing some individuals to death from unfavourable mutations. Bemoaning this imperfection of nature has, however, no place in a scientific treatment of this subject.
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The living world is not a single array... connected by unbroken series of intergrades.
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I am a creationist and an evolutionist. Evolution is God's, or Nature's method of creation. Creation is not an event that happened in 4004 BC it is a process that began some 10 billion years ago and is still under way.
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Seen in the light of evolution, biology is, perhaps, intellectually the most satisfying and inspiring science. Without that light it becomes a pile of sundry facts -- some of them interesting or curious but making no meaningful picture as a whole.
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Nature's stern discipline enjoins mutual help at least as often as warfare. The fittest may also be the gentlest.
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An accident, a random change, in any delicate mechanism can hardly be expected to improve it. Poking a stick into the machinery of one's watch or one's radio set will seldom make it work better.
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Pat answers to complex problems are the hallmark of intellectual mediocrity
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Evolution as a process that has always gone on in the history of the earth can only be doubted by those who are ignorant of the evidence or are resistant to evidence, owing to emotional blocks or plain bigotry.
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The more we know, the better we realize that our knowledge is a little island in the midst of an ocean of ignorance.
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No evidence is powerful enough to force acceptance of a conclusion that is emotionally distasteful.
Theodosius Dobzhansky