Given the well-known Republican antipathy to evolution, President Obama’s recent description of the Republican budget as an example of “social Darwinism” may be a canny piece of political labeling. In the interests of historical accuracy, however, it should be clearly recognized that “social Darwinism” has very little to do with the ideas developed by Charles Darwin in “On the Origin of Species.” Social Darwinism emerged as a movement in the late 19th-century, and has had waves of popularity ever since, but its central ideas owe more to the thought of a luminary of that time, Herbert Spencer, whose writings are (to understate) no longer widely read.

Spencer, who coined the phrase “survival of the fittest,” thought about natural selection on a grand scale. Conceiving selection in pre-Darwinian terms — as a ruthless process, “red in tooth and claw” — he viewed human culture and human societies as progressing through fierce competition. Provided that policymakers do not take foolish steps to protect the weak, those people and those human achievements that are fittest — most beautiful, noble, wise, creative, virtuous, and so forth — will succeed in a fierce competition, so that, over time, humanity and its accomplishments will continually improve. Late 19th-century dynastic capitalists, especially the American “robber barons,” found this vision profoundly congenial. Their contemporary successors like it for much the same reasons, just as some adolescents discover an inspiring reinforcement of their self-image in the writings of Ayn Rand .

Although social Darwinism has often been closely connected with ideas in eugenics (pampering the weak will lead to the “decline of the race”) and with theories of racial superiority (the economic and political dominance of people of North European extraction is a sign that some racial groups are intrinsically better than others), these are not central to the position.

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