"The love for all living creatures is the most noble attribute of man."
"I think it inevitably follows, that as new species in the course of time are formed through natural selection, others will become rarer and rarer, and finally extinct. The forms which stand in closest competition with those undergoing modification and improvement will naturally suffer most."
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Source: Charles Darwin (2015). “Delphi Complete Works of Charles Darwin (Illustrated)”, p.3831, Delphi Classics
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