Political Theology was originally published in 1922 and it represents Schmitt’s most important initial engagement with the theme that was to preoccupy him for most of his life: that of sovereignty—that is, of the locus and nature of the agency that constitutes a political system.
“Today nothing is more modern than the onslaught against the political. . . . There must no longer be political problems, only organizational-technical and economic-sociological ones” (PT, 65). In 1929, Schmitt will lecture on Barcelona on this topic as “The Age of Neutralization and Depoliticization.”