More than half a century after the fall of the Third Reich, Nazism, its roots and its essential nature, remain a central and unresolved enigma of the twentieth century. During the period of Hitler's ascendancy, most attempts at explaining this unprecedented phenomenon were framed in "economic," often Marxist, sociological terms and concepts. Peter Viereck's Metapolitics, initially published in 1941, broke with this convention by indicting Hitler...