A good war is a bad one
It's a Chinese idiom. The Pinyin is Ji ā B ī NGB ú Xi á ng, which means that the best use of troops is unlucky. From Laozi.
The origin of Idioms
In Laozi written by Li Er in pre Qin Dynasty, it is said that "a good husband is a good weapon, an ominous weapon, and an evil thing."
Idiom usage
It's better not to use military force, not to burn yourself. The 121st chapter of the popular romance of the Republic of China by Cai Dongfan
A good war is a bad one
the law does not protect the powerful persons - fǎ bù ē guì
be at peace at seeing peach flowers flowing away with water - liú shuǐ táo huā