It is never right to give bad examples to others, even if one expects good to come from it.

给别人示范坏榜样绝对不行，就算期待结果会是良善也不行。

耶鲁公开课 - 政治哲学导论课程节选

Yet, Machiavelli breaks these rules about not giving bad examples.

但马奇亚维利打破这些,关于不给坏榜样的规则。

耶鲁公开课 - 政治哲学导论课程节选