Indeed, the rise of naturalism has meant moral catastrophe for modern society. The most damaging ideologies of the nineteenth and twentieth centuries were all rooted in Darwinism.
One of Darwin's earliest champions, Thomas Huxley, gave a lecture in 1893 in which he argued that evolution and ethics are incompatible. He wrote that "the practice of that which is ethically best—what we call goodness or virtue—involves a course of conduct which, in all respects, is opposed to that which leads to success in the cosmic struggle for existence." [Evolution and Ethics, The Romanes Lecture, 1893.]
Huxley nonetheless went on to try to justify ethics as a positive result of humanity's higher rational functions, and he called upon his audience neither to imitate "the cosmic process" nor to run away from it, but rather to combat it—ostensibly by maintaining some semblance of morality and ethics. But what he could not do—what he and other philosophers of his era did not even bother attempting to do—was offer any justification for assuming the validity of morality and ethics per se on purely naturalistic principles. Huxley and his fellow naturalists could offer no moral compass other than their own personal preferences, and predictably, their philosophies all opened the door wide for complete moral subjectivity and ultimately amorality.
Philosophers who incorporated Darwin's ideas were quick to see Huxley's point, conceiving new philosophies that set the stage for the amorality and genocide that characterized so much of the twentieth century.
Karl Marx, for example, self-consciously followed Darwin in the devising of his economic and social theories. He inscribed a copy of his book Das Kapital to Darwin, "from a devoted admirer." He referred to Darwin's The Origin of Species as "the book which contains the basis in natural history for our view." [Stephen Jay Gould, Ever Since Darwin (New York: Norton, 1977), 26.]
Herbert Spencer's philosophy of "Social Darwinism" applied the doctrines of evolution and the survival of the fittest to human societies. Spencer argued that if nature itself has determined that the strong survive and the weak perish, this rule should govern society as well. Racial and class distinctions simply reflect nature's way. There is therefore no transcendent moral reason to be sympathetic to the struggle of the disadvantaged classes. It is, after all, part of the natural evolutionary process—and society would actually be improved by recognizing the superiority of the dominant classes and encouraging their ascendancy. The racialism of writers such as Ernst Haeckel (who believed that the African races were incapable of culture or higher mental development) was also rooted in Darwinism.
Friedrich Nietzsche's whole philosophy was based on the doctrine of evolution. Nietzsche was bitterly hostile to religion, and particularly Christianity. Christian morality embodied the essence of everything Nietzsche hated; he believed Christ's teaching glorified human weakness and was detrimental to the development of the human race. He scoffed at Christian moral values such as humility, mercy, modesty, meekness, compassion for the powerless, and service to one another. He believed such ideals had bred weakness in society. Nietzsche saw two types of people—the master-class, an enlightened, dominant minority; and the "herd," sheeplike followers who were easily led. And he concluded that the only hope for humanity would be when the master-class evolved into a race of Ã¼bermenschen (supermen), unencumbered by religious or social mores, who would take power and bring humanity to the next stage of its evolution.
It's not surprising that Nietzsche's philosophy laid the foundation for the Nazi movement in Germany. What is surprising is that at the dawn of the twenty-first century, Nietzsche's reputation has been rehabilitated by philosophical spin-doctors and his writings are once again trendy in the academic world. Indeed, his philosophy—or something very nearly like it—is what naturalism must inevitably return to.
All of these philosophies are based on notions that are diametrically opposed to a biblical view of the nature of man, because they all start by embracing a Darwinian view of the origin of humanity. They are rooted in anti-Christian theories about human origins and the origin of the cosmos, and therefore it is no wonder that they stand in opposition to biblical principles at every level.
The simple fact of the matter is that all the philosophical fruits of Darwinism have been negative, ignoble, and destructive to the very fabric of society. Not one of the major twentieth-century revolutions led by post-Darwinian philosophies ever improved or ennobled any society. Instead, the chief social and political legacy of Darwinian thought is a full spectrum of evil tyranny with Marx-inspired communism at one extreme and Nietzsche-inspired fascism at the other. And the moral catastrophe that has disfigured modern Western society is also directly traceable to Darwinism and the rejection of the early chapters of Genesis.
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