“For Dawkins, atheism is a necessary consequence of evolution. He has argued that the religious impulse is simply an evolutionary mistake, a ‘misfiring of something useful’, it is a kind if virus, parasitic on cognitive systems naturally selected because they had enabled a species to survive.Dawkins is an extreme exponent of the scientific naturalism, originally formulated by d’Holbach, that has now become a major worldview among intellectuals. More moderate versions of this “scientism” have been articulated by Carl Sagan, Steven Weinberg, and Daniel Dennett, who have all claimed that one has to choose between science and faith. For Dennett, theology has been rendered superfluous, because biology can provide a better explanation of why people are religious. But for Dawkins, like the other “new atheists” – Sam Harris, the young American philosopher and student of neuroscience, and Christopher Hitchens, critic and journalist – religion is the cause of the problems of our world; it is the source of absolute evil and “poisons everything.” They see themselves in the vanguard of a scientific/rational movement that will eventually expunge the idea of God from human consciousness.But other atheists and scientists are wary of this approach. The American zoologist Stephen Jay Gould (1941-2002) followed Monod in his discussion of the implications of evolution. Everything in the natural world could indeed be explained by natural selection, but Gould insisted that science was not competent to decide whether God did or did not exist, because it could only work with natural explanations. Gould had no religious axe to grind; he described himself as an atheistically inclined agnostic, but pointed out that Darwin himself had denied he was an atheist and that other eminent Darwinians - Asa Gray, Charles D. Walcott, G. G. Simpson, and Theodosius Dobzhansky - had been either practicing Christians or agnostics. Atheism did not, therefore, seem to be a necessary consequence of accepting evolutionary theory, and Darwinians who held forth dogmatically on the subject were stepping beyond the limitations that were proper to science.”