The intelligent design movement is a neo-creationist religious campaign for broad social, academic and political change to promote and support the pseudoscientific idea of intelligent design (ID), which asserts that "certain features of the universe and of living things are best explained by an intelligent cause, not an undirected process such as natural selection." Its chief activities are a campaign to promote public awareness of this concept, the lobbying of policymakers to include its teaching in high school science classes, and legal action, either to defend such teaching or to remove barriers otherwise preventing it. The movement arose out of the previous Christian fundamentalist and evangelistic creation science movement in the United States, and is driven by a small group of proponents. The overall goal of the intelligent design movement is to overthrow materialism and atheism. Its proponents believe that society has suffered "devastating" cultural consequences from adopting materialism and that science is the cause of the decay into materialism because it seeks only natural explanations, and is therefore atheistic. They believe that the scientific theory of evolution implies that humans have no spiritual nature, no moral purpose, and no intrinsic meaning. They seek to "reverse the stifling dominance of the materialist worldview" represented by the theory of evolution in favor of "a science consonant with Christian and theistic convictions."