《资治通鉴·汉纪·汉纪二十》
任用贤能的人，不到三十天便逐出朝廷，像转动一块石头一样容易。《论语》说：看见邪恶，好象用手去探试滚水。
今出善令未能逾时而反，是反汗也；用贤未能三旬而退，是转石也。《论语》曰： 见不善如探汤。 
Employ competent people, and they will be banished from the court in less than thirty days, as easy as turning a stone. The Analects says: When seeing evil, it is like testing boiling water with your hand.