《资治通鉴·周纪·周纪四》
这样，才能军队强劲，城池坚固，使敌对国家畏惧。国家的方针一贯而明确，友邦就予以信任。
如是，则兵劲城固，敌国畏之；国一綦明，与国信之。
In this way, the army will be strong and the fortifications sturdy, causing enemy countries to fear them. Since the country’s policies are consistent and clear, friendly countries will trust them.