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Variation quotes

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Charles Darwin
“This preservation of favourable individual differences and variations, and the destruction of those which are injurious, I have called Natural Selection, or the Survival of the Fittest.” Charles Darwin, On The Origin of Species
Charles Darwin
“It seems clear that organic beings must be exposed during several generations to new conditions to cause any great amount of variation; and that, when the organisation has once begun to vary, it generally continues varying for many generations.” Charles Darwin, On The Origin of Species

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evolution generations selection

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On The Origin of Species (2)
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