changeable and unfathomable
The great sage and the tiger change, read as D à Xi á NH à Bi à n, is an idiom, which refers to the unpredictable source and action of the superior. It comes from the book of changes.
Interpretation of tiger change: such as the change of tiger body pattern. it comes from the revolution of the book of changes: "great men and tigers have changed, but they have not possessed Fu." He was a fool, and he looked like an ordinary man at that time. (Liang Fu Yin by Li Bai in Tang Dynasty)
changeable and unfathomable
ashamed to associate with somebody - xiū yǔ wéi wǔ
too weak to bear the weight of one 's clothes - rú bù shèng yī
Work at sunrise and rest at sunrise - rì chū ér zuò,rì rù ér xī
blot out the sky and cover up the earth - pū tiān gài dì