Bright and dim
Ming Zhao Hun Meng, a Chinese idiom, Pinyin is m í ngzh ā oh ū nm é ng, which means smart and sensible, ignorant and unreasonable. It comes from the laments of Uncle Dugu Shen.
Notes on Idioms
Zhao: understand; Meng: ignorant.
The origin of Idioms
Han Yu's "mourning for uncle Dugu Shen" in Tang Dynasty: "who is not heaven's evil? Who is the cause of evil
Bright and dim
a coordinated action from without and within - biǎo lǐ xiāng yìng