The intellectual relationship between Carl Schmitt and Max Weber has been a point of controversy for at least half a century. At the 1964 convention of the German Sociological Association, in honor of Weber's centenary, Schmitt was famously referred to as Weber's “legitimate student.” This article uses the chapter Schmitt specifically wrote for an edited volume in Weber's memory, published in 1923, as the starting point for juxtaposing the two scholars, and then expands the analysis to encompass a range of sources and commentaries. The comparison focuses on the approach of each of the two scholars to methodology and didactics, theory and conceptual use, as well as to the society/social science nexus. The article concludes by arguing that Schmitt performed a double rhetorical move: while styling himself as Weber's student, he then drew on that authority to assault Weber's liberalism and concept of scientific integrity.