"While in graduate school I encountered the writings of Friedrich Hayek and Ludwig von Mises, which shook me out of my then socialist beliefs. There was Hayek's book of essays, Individualism and Economic Order, and Mises's wide-ranging and unsettling Socialism, which showed me I had not thought through any details — economic, social or cultural — of how socialism would work. One of their arguments in particular, about the impossibility of rational economic calculation under socialism, dumbfounded me. Whether or not the argument was ultimately judged to be correct, it was amazing, something I never would have thought of in a million years."