Quis custodiet ipsos custodes?
From Liberpédia
Quis custodiet ipsos custodes?
Cuzan, Alfred G. "Do We Ever Really Get Out of Anarchy?." Journal of Libertarian Studies 3, No.2 (1979): 151-158.
Cuzan, Alfred G. "Revisiting "Do We Ever Really Get Out of Anarchy?"." Journal of Libertarian Studies 22, No. 1 (2010): 3–21.