《资治通鉴·周纪·周纪一》
愚人尽管想作恶，因为智慧不济，气力不胜任，好像小狗扑人，人还能制服它。
愚者虽欲为不善，智不能周，力不能胜，譬之乳狗搏人，人得而制之。
A fool, although wanting to commit evil, because of insufficient wisdom and strength, is like a small dog jumping at someone, and people can still control it.