《吕氏春秋·览·恃君览》
一个国家冶理得很好却去攻打它，没有比这更不吉祥的了，一个国家发生混乱却不去讨伐它，对人民的残害没有比这更大的了。
治而攻之，不祥莫大焉；乱而弗讨，害民莫长焉。
There is nothing more inauspicious than to attack a country that has been well governed, and nothing more harmful to the people than to not quell a country in chaos.