Public observation, private investigation
Pinyin [mí ng chá n f ? ng]
Explain observation in the open, and seek understanding in the dark. Refers to the investigation by various means.
Source? Qing Wu Ren Jian's "History of Pain" the eleventh time: "I live here, only one seat, it is useless, it is better to go outside for an unannounced visit."
Multiple investigation and understanding
spell
Explain public investigations and secret visits. Refers to various investigations to understand the situation.
Source? Travel Notes of Qing Liu E Lao Can (18): "I sent you to Qidong Village for an unannounced visit. Did you take poison in these thirteen murders? "
Close your eyes and make unannounced visits are synonymous: open eyes and make unannounced visits.
Insight into the smallest details
Pinyin [míng cháqi Hao]
It means that you have a pair of keen eyes and can see even the smallest thing. Cha: I can see that. Qiu Hao: New fine hairs on birds and animals in autumn.
Source: Mencius Hui Liang Wang Shang in the Warring States Period: "Ming is enough to watch the end of autumn." ?