Summer Partridge
Zixia Danggui, a Chinese idiom, Pinyin is Z ǐ Xi à Xu á NCH ú n, which means to describe a person who is ragged, has a hard life but is aloof and happy in poverty. It comes from Xunzi.
Idiom usage
Quail: the bald tail of quail is like a patchy knot. It refers to Zixia's poor life but unwilling to be an official. His clothes are tattered and knotted. He is like a quail tail hanging on his body. It describes a person who is ragged and lives a hard life, but is self-supporting and happy in poverty. Example Zixia was poor and dressed like a county quail.
The origin of Idioms
"Xunzi's general plan" says: "Zixia's family is poor, and his clothes are like hanging quails."
Summer Partridge
strike where or when the enemy is unprepared - gōng qí wú bèi