January 10th 49 BC is widely known as the day that Gaius Julius Caesar, on crossing the Rubicon river with only one legion to trigger a civil war, said the historically famous phrase "the dice is thrown" or "The die is cast" ("Alea iacta est" in Latin).
It was said that Caesar quoted the phrase from Menander ( comic dramatist of ancient Greece (342-292 BC) ) in Greek.。
Today, the phrase is often used when one confronts a decisive and/or inevitable event, crossing the point of no return.
人生には渡った以上突き進まねばならない「ルビコン川」が幾度かあります
We sometimes come across a "Rubicon River" situation in our lives, where we must simply move on.