be just and stern
Selfless, Chinese idiom, Pinyin is ti ě B ǐ w ú s ī. From a brief history of Chinese novels.
The origin of Idioms
"A brief history of Chinese Novels" Chapter 18: "Five ghosts all stepped forward, grabbed the pen and said," the pen is selfless. "
be just and stern
Taking advantage of chaos to survive - qǔ luàn cún wáng