Stephen Jay Gould Quotes


A complete theory of evolution must acknowledge a balance between "external" forces of environment imposing selection for local adaptation and "internal" forces representing constraints of inheritance and development. Vavilov placed too much emphasis on internal constraints and downgraded the power of selection. But Western Darwinians have erred equally in practically ignoring (while acknowledging in theory) the limits placed on selection by structure and development what Vavilov and the older biologists would have called "laws of form.


Citations

Stephen Jay Gould, Hen's Teeth and Horse's Toes. W. W. Norton & Company, 1983, p. 142.

Related Quotes

Here the Governor makes a very common error of people who do not have scientific training. They believe that a Scientific Theory is an assertion that has not yet been proven. That is not the way scientists use the term. The Theory of Relativity, Theory of Quantum Mechanics and Theory of Evolution all scientifically refer to a major set of scientific statements and relationships that have been proven over and over again, together with many corollaries and deductions. It is an established, experimentally proven body of knowledge that is still producing additional hypotheses that then need to be proven or refuted. The scientific THEORY is as high as it gets on the scientific scale of proof. The word “theory” used in science is not one fact, but a large set of related facts and their proofs. What the Governor refers to, scientists call hypotheses or speculations. There have been many more proofs of evolution -–many thousands of them—than proofs of Relativity which is actually harder to prove and only has a few thousand proofs. More important, not one person has ever been able to prove scientifically that any of the assertions of evolution are false. Some religions have no difficulty with evolution (Roman Catholics for example) and a few do (fundamentalist Protestants for example). Governor Huckabee was also a fundamentalist Protestant minister. Even the Federal courts have held that the objections and so called “refutations” and alternatives to evolution are religious and not scientific, and hence may not be taught as science in public schools. Non evolution (like creationism) is a religious and cultural notion and should be studied as that.


This quotation from this letter was one of the key items of evidence showing that Wallace had independently developed the concept of Evolution before Darwin published his famous treatise. Darwin began formulating his theory of natural selection in the late 1830s but he went on working quietly on it for twenty years. He wanted to amass a wealth of evidence before publicly presenting his idea. During those years he corresponded briefly with Wallace (right), who was exploring the wildlife of South America and Asia. Wallace supplied Darwin with birds for his studies and decided to seek Darwin's help in publishing his own ideas on evolution. He sent Darwin his theory in 1858, which, to Darwin's shock, nearly replicated Darwin's own…. Joseph Dalton Hooker arranged for both Darwin's and Wallace's theories to be presented to a meeting of the Linnaean Society in 1858. However, Wallace seems to have been onto the idea of evolution over a decade before as this quotation shows.


Evolution sometimes produce or retain components that have no purpose or are even inefficient. But he is urging the biologist to remember that none of the life form were designed much less designed efficiently. We humans have an appendix for example, which does nothing positive and sometimes gets infected and kills us. Yet it is still there. We have so much else on the positive side that a few weaknesses are not material to our survival.


Stephen Jay Gould
Stephen Jay Gould
  • Born: September 10, 1941
  • Died: May 20, 2002
  • Nationality: American
  • Profession: Scientist

Stephen Jay Gould was an American paleontologist, evolutionary biologist, and historian of science. He was one of the most influential and widely read authors of popular science of his generation. Gould spent most of his career teaching at Harvard University and working at the American Museum of Natural History in New York. In 1996, Gould was hired as the Vincent Astor Visiting Research Professor of Biology at New York University, where he divided his time teaching there and at Harvard.