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Charles Darwin Quotes about Struggle

The survival or preservation of certain favoured words in the struggle for existence is natural selection.

Charles Darwin (2007). “The Descent of Man: The Concise Edition”, p.130, Penguin

Nothing is easier than to admit in words the truth of the universal struggle for life, or more difficult--at least I have found it so--than constantly to bear this conclusion in mind.

Charles Darwin, James T. Costa (2009). “The Annotated Origin: A Facsimile of the First Edition of On the Origin of Species”, p.62, Harvard University Press