(Even if a castle is securely defended, it would be impossible to keep governing the country when people lose their patriotism for the country. A merciful act enables <you> to keep people's minds on your side, resulting in the country to proper, while more revenge will cause the country to be destroyed.)
（どれだけ城を堅固にしても、人の心が離れてしまったら世を治めることはできない。情けは人をつなぎとめ、結果として国を栄えさせるが、仇を増やせば国は滅びる）