Hidden scale and hidden color
Source: the book of the later Han Dynasty, biography of Yimin, Chen Liu's old father: "husband and dragon do not hide scales, Phoenix do not hide feathers, hang the net high, go to the safe place." Example: Ning ~, like a dragon in the abyss? Divination by Ji Kang, Wei of the Three Kingdoms
Hidden scale and hidden color
swallow insult and humiliation silently - píng qì tūn shēng
so poor as to have no room to stick an awl on - pín wú zhì zhuī
leave a good name for a hundred generations - liú fāng hòu shì
the days and months will be leaving us - rì yuè qí chú