Nathan Leopold is not the only boy who has read Nietzsche.” So said Clarence Darrow at the trial of Leopold and Loeb, the two University of Chicago law students who had murdered young Bobby Franks for no other reason than to prove that they were Nietzschean Supermen who could.

When I’m feeling mischievous, I think of using that line as an epigraph for an essay on Nietzsche and libertarianism. How many teenage boys, after all, have found their way into the free market via Nietzsche? None, one insider tells me; a lot, says another. My impression is that the latter is right, but good data is hard to come by.

Every ten years, Liberty Magazine polls its readers about their intellectual influences. The magazine draws up a list of candidates to vote on. Nietzsche is never on it. Even so, he gets written in each time by the readers. So much so that the editors have been forced to acknowledge on more than one occasion that should they put his name on the pre-approved list of possible influences he might draw more votes than some if not many of the others.