Old and lonely
The Chinese idiom, Pinyin is y í L ǎ og ū ch é n, which means the old minister who has lost power and is still loyal to the former dynasty after the change of dynasty. It's from the book of warning the whole nation.
The origin of Idioms
Li Dazhao's book of warning the nation's fathers and elders: "in the past, they changed their name to the new generation, and their rise and fall were sudden. One or two of them left their old and lonely ministers. They couldn't bear to see the inclination of the clan and the disgrace of their father. They were still like Huang Guan Cao Lu, singing and crying in the empty mountains, disordered reefs and poor islands, and they wept at each other."
Idiom usage
Used as an object or attribute; used in writing
Old and lonely
the young man is promising and worthy to be taught - rú zǐ kě jiào
On the popularity of discussion - lùn yì fēng shēng
a student 's long years of academic studies - shí zǎi hán chuāng