鸿毛泰山

Explanation: Parable severity varies greatly. 　　Usage: Joint type; as object; compared the value of the severity of the poor die 　　Source: Qian Han, "reported Ren Shaoqing book": "People inherent in a death, or weightier than Mount Tai or lighter than a feather, the divergence is also used." 　　Examples: If you must choose to die by, and that ~, the severity is different, although the value is a matter of death, fear of death can not carry on. (Zhang Binglin "Gansi of Postscripts") Thesaurus:  A goose feather, something very light or insignificant Tai Dai