Recorded in 《
世说新语·
贤媛》 (Shishuo Xinyu, A New Account of the Tales of the World): "
顾家妇清心玉映,
自是闺房之秀" — a refined young woman of the inner chambers. Here
大家 dàjiā means "great house / aristocratic family" (NOT "everyone"),
闺 guī = inner women's quarters,
秀 xiù = the finest among them.