国尔忘家

Explanation: As one for the country, regardless of the family. 　　Usage: Partial official; as predicate, attributive; with commendatory 　　Source: Han Ban Gu, "Han Jia Yi Chuan": "was the ministers who forget the main body ear, ear forget home country, the public ear above private, profit careful on, careful to harm, where the only justice." 　　Examples: At that time, the reform of people, all seem to have Hun why not destroy a family for the ~, public and private Seoul forget the spirit. (Lu Xun, "two books" 9) Thesaurus:  to sacrifice one's life heroically for a cause, belief, or principle