Forefathers slip, posterity slip
The pronunciation of Qi á NR é NSH ī Ji ǎ o, H ò ur é Nb ǎ Hu á is a Chinese idiom. It means to learn from others' failure and be careful so as not to fail again.
explain
It means to learn from others' failure and be careful so as not to fail again.
source
Ye Sheng's Diary of Shuidong in the Ming Dynasty, Volume 7: "the temple of benevolence is suffering from foot disease, but it's still in the middle of the official's wings. Gu Zhao, a Han Dynasty man, said, "if the predecessors slip, the descendants slip."
Forefathers slip, posterity slip
lower one 's banners and muffle one 's drums - yǎn qí xī gǔ
radiant and enchanting spring scene - yīng fēi cǎo zhǎng
pay no attention to small matters - bù jīn xì xíng