The root cause
In the beginning, Chinese idioms, Pinyin is Q ǐ g ē NF ā y ó u, which means to point out the source of things. It's from Jing Hua Yuan by Li Ruzhen in Qing Dynasty.
Idiom: origin Pinyin: Q ǐ g ē NF ā y ó u interpretation: metaphor points out the source of things.
The root cause
achieve success with original ideas - chū qí qǔ shèng
Consider the past and the present - zhuó gǔ cān jīn
unable to swallow a bite of food or close one 's eyes in sleep - qǐn shí jù fèi