“Mere chance … alone would never account for so habitual and large an amount of difference as that between varieties of the same species.”
Source: On the Origin of Species (1859), chapter IV: "Natural Selection", page 111 http://darwin-online.org.uk/content/frameset?pageseq=126&itemID=F373&viewtype=image
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Charles Darwin 161
British naturalist, author of "On the origin of species, by… 1809–1882Related quotes
Axelrod, Robert, and William Donald Hamilton. "The evolution of cooperation." Science 211.4489 (1981): 1390
Source: 1940s - 1950s, Theory of Experimental Inference (1948), p. 255; cited in The Journal of the American Forensic Association. Vol 20-22 (1984), p. 180

Source: Mendel's Principles of Heredity (1913), p. 3

In response to the question "Is it impossible to be totally objective?"
Larry King Interview (8 September 2003)
Context: My dad was part of the pioneers of public broadcasting in Canada. And he always told me the most important thing you can be in your career is fair. So we all start to see a box and hope that we see the box in the same way. But you recognize in time that people see the box or they see traffic accidents in entirely different ways. So you train yourself over the years to try and give accounting to the variety... and come to some decent place in the middle. But I'm not a slave to objectivity. I'm never quite sure what it means. And it means different things to different people.

"Foreign Policy Drains U.S. of Main Weapon," Los Angeles Times, Sept. 9. 1962, G2 — as reported in The Ayn Rand Lexicon http://aynrandlexicon.com/lexicon/socialism.html: Objectivism from A to Z (1986)
Source: Computer Science as Empirical Inquiry: Symbols and Search (1975), p. 122.