quis custodiet ipsos custodes

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  • (Classical) IPA(key): /kʷis kusˈtoː.di.et ˈi.psoːs kusˈtoː.deːs/, [kᶣɪs kʊsˈtoː.di.ɛt ˈɪ.psoːs kʊsˈtoː.deːs]


quis custōdiet ipsōs custōdēs?

  1. “Who guards the guards?”, “Who watches the watchers?”
    • first or second century (AD), Juvenal, Satura VI, lines 347–348:
      audio quid ueteres olim moneatis amici, 'pone seram, cohibe.' sed quis custodiet ipsos custodes? cauta est et ab illis incipit uxor.
      I hear always the admonishment of my friends: "Bolt her in, constrain her!" But who will guard the guardians? The wife plans ahead and begins with them.

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