Our Enemy, the State is the best-known book by libertarian author Albert Jay Nock, serving as a fundamental influence for the modern libertarian and American conservatism movements. Initially presented as a series of lectures at Bard College, it was published in 1935, and attempts to analyze the origins of American freedom, as well as questioning the nature and legitimacy of authoritarian government. Nock differentiates between that, which he refers to as "the State" (as described by Franz Oppenheimer in his book The State) and legitimate government, including governing oneself or consensual delegation of decision-making to leaders one selects.