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quis custodiet ipsos custodes?

American  
[kwis koo-stoh-dee-et ip-sohs koo-stoh-deys, kwis kuh-stoh-dee-it ip-sohs kuh-stoh-deez] / kwɪs kʊˈstoʊ diˌɛt ˈɪp soʊs kʊˈstoʊ deɪs, kwɪs kəˈstoʊ di ɪt ˈɪp soʊs kəˈstoʊ diz /
Latin.
  1. who shall keep watch over the guardians?


quis custodiet ipsos custodes? British  
/ kwɪs kʊsˈtəʊdɪˌɛt ˈɪpsɒs kʊsˈtəʊdiːz /
  1. who will guard the guards?

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The Roman poet Juvenal asked: “Quis custodiet ipsos custodes?”

From Washington Post

Interesting developments in America’s elect-your-id experiment, as the shining city upon a hill runs up against that age-old political question: Quis custodiet ipsos custodes?

From The Guardian

Independent policing of the news has a natural appeal, but it raises the question posed in Juvenal’s Satires: Quis custodiet ipsos custodes?

From The Wall Street Journal

As the ancient Romans used to say, Quis custodiet ipsos custodes?

From New York Times

One of the Roman poet Juvenal’s best-known lines is quis custodiet ipsos custodes.

From The Wall Street Journal