人心不足蛇吞象

Explanation: Analogy were covetous, like a snake swallowing an elephant to the same. 　　Usage: Complex sentence; as object, attribute, clause; containing derogatory 　　Source: Yuan Anonymous "enemy creditors" wedge: "She Tunxiang less people, the world is coming to an end mantis stalks the cicada." 　　Examples: Luo Hongxian poem: "~, the world is coming to an end mantis stalks the cicada." (Zhai Qing Hao, "the popular series bird fish")