like silk and cowhair
Cocoon, silk, ox hair, Chinese idiom, Pinyin is Ji ǎ ns ī Ni ú m á o, which means to describe meticulous Kung Fu. It comes from the book of answering Wanchong's questions.
The origin of Idioms
Huang Zongxi of the Qing Dynasty wrote in his answer to Wanchong Zong's query: "my elder brother is skillful, and his heart is like this. It's not only that there is no such thing as juechen today, but also that it's not easy to be a Confucianist."
Idiom usage
My elder brother is very skillful, and his heart is like this. It's not only today's Wu juechen, but also early Confucianism! Answer to Wanchong's query by Huang Zongxi in Qing Dynasty
like silk and cowhair
roll up one 's sleeves and raise one 's fists to fight - xuān quán luó xiù
discard the dross and select the essential - qù cū qǔ jīng