poor but clean
As a Chinese idiom, Pinyin is C ǎ oy ī m ù sh í, which means to weave grass for clothing and eat the fruits of trees to describe the hardships of life. From a dream of the Yellow sorghum.
The origin of Idioms
Yuan · Ma Zhiyuan's "a dream of yellow Sorghum" the first discount: "you are a family. You have never lived in grass and wood. You have worked hard. What's the use of happiness.
Idiom usage
Combined; as object and attribute; with derogatory meaning. example this monk has never lived a simple life. (the first fold of Wangjiang Pavilion by Guan Hanqing in Yuan Dynasty) Chapter 37 of Chronicles of the Eastern Zhou Dynasty by Feng Menglong in Ming Dynasty: "Jie Zitui is a man who takes his mother's life and lives in a deep valley. He lives in grass, clothes and food, and will end his life."
poor but clean
mud and sand are carried along -- there is a mingling of good and bad - ní shā jù xià
Words are not words, deeds are not far - yán zhī bù wén,xíng zhī bù yuǎn
with very limited knowledge and scanty information - gū lòu guǎ wén