凶残的人也有善良的心，不顾一切的玩命。

A ferocious man also has a good heart, fling caution to the winds of your life.

youdao

那名俘虏留着胡须，据说他是个凶残的人。

The captive had a beard and it was said that he was a beast.

youdao

老虎可以指凶残的人。

"A tiger" may refer to a ferocious man.

youdao

Therefore, when he is without virtue, man is the most unscrupulous and savage of the animals."

因此,一旦失去美德,人就是最不讲道德最为凶残的野兽"

耶鲁公开课 - 古希腊历史简介课程节选