兽心人面
      Explanation: Although the face of people, but their hearts are like wild beasts. Describe the ferocious cruelty of people.
      Source: Tang and Zhang Zhuo, "Chao Ye Qian _set_" volume IV of the language when the Taichung said that one does not know V Retirements Hou, Zhang Cong, please rise up from the Norm ... ... None of the human and material is completely apart from the king. Beast faces of the people, not the natural peace! "
      Examples: Xun is ~, and asked the public this means knower Yuan? ★ Ching Hung Tung Park "Commandments hanging Yan ape ape"