The concept of evolution is widely considered to be a foundational building block in atheist thought. Leaders of the New Atheist movement have taken Darwin's work and used it to diminish the authority of religious institutions and belief systems. But they have also embraced it as a metaphor for the gradual replacement of religious faith with secular reason. They have posed as harbingers of human progress, claiming the moral high ground, and rejecting with intolerance any message that challenges the hegemony of science and reason. Religion, according to the New Atheists, should be relegated to the Dark Ages of superstition and senseless violence. --Publisher