Language: en
Meaning: (idiomatic)Tomakeanirreversibledecisionor totakeanactionwithconsequences.He knew that by coming out to his family he would becrossing the Rubicon, but he could not live a lie anymore.2015September 5, Toby Helm, quoting Justin Welby, “Welby urges MPs: reject right-to-die bill that ‘crosses the Rubicon’”, inThe Observer[1],→ISSN:Britain willcrossa “legal and ethicalRubicon” if parliament votes to permit terminally ill patients to end their lives, said the archbishop of Canterbury, Justin Welby, as leaders of all the UK’s major faith groups call on MPs to reject plans to allow assisted suicide.2016,Joseph Henrich, chapter 17, inThe Secret of Our Success[…], Princeton: Princeton University Press,→ISBN:Havingcrossed the Rubicon, we can't go back. The impact of this transition is underlined by the fact that, despite our long evolutionary history as foragers, we generally can't survive by hunting and gathering when we have been stripped of that relevant culturally acquired know-how.2019August 16, Bonnie Girard, “Battle-Ready: The PLA’s Hong Kong Garrison”, inThe Diplomat[2], archived fromthe originalon16 August 2019:Will Chinacross the Rubiconby sending its military to Hong Kong?[…]As the world contemplates whether Beijing willcross the Rubiconand use military force to quell protests in Hong Kong, one question naturally comes to mind: Would the existing garrison be used, or would tanks and soldiers, recently seen moving toward the border in nearby Shenzhen, come across from the mainland? Would they conceivably act as a combined force?2022March 9, Luuk van Middelaar, “History is brutally back, and Ukraine will test Europe’s appetite for the consequences”, inThe Guardian[3],→ISSN:With the invasion of Ukraine the Russian president, Vladimir Putin, has thrown himself into the unthinkable. He hascrossed the Rubiconinto a time of war. He has no way back.2022October 21, Jason Bailey, “How George Clooney and Julia Roberts Quietly Became the Tracy-Hepburn of Our Time”, inThe New York Times[4]:When the inevitable moment arrives tocross theromanticRubiconin “Ticket to Paradise,” the machinery of the screenplay and the far-fetched nature of the moment don’t matter — they can just look at each other and sell it.
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