Karl Marx

Like a coffee stain on a new carpet, Karl Marx stubbornly refuses to go away. The appeal of his ideas seems to be rooted in some fanciful, whitewashed version of history, because almost without fail, Marx's biggest fans are those people who never had to live under the consequences of his political philosophy.

Attempts to rehabilitate Marx's image occur among left-wing academics, usually fringe economists and undergraduate philosophy majors. Marx is not a typical topic of conversation among biomedical scientists, which is why a recent editorial by Richard Horton, editor-...