"Books about science usually fall into two categories: those that explain science to the general public, aiming to refine their thinking; and those that try to persuade fellow scientists to support a new theory. Books that achieve both are rare. One was The Origin of Species by Darwin. Another is The Selfish Gene by Dawkins." — Matt Ridley, Nature (2016)
"The book should be read, and can be read, by almost anyone. It masterfully describes a new aspect of the theory of evolution." — William Hamilton, Crafoord Prize in Biology, Science (1977)
"The book, although written to be read by the general public, constitutes a serious contribution to the field of biology." — John Maynard Smith, Crafoord Prize in Biology, The London Review of Books (1982)
"The book is an intricate restatement of the central problems of sociobiology." — Sir Peter Medawar, Nobel Prize in Physiology or Medicine