《论衡·卷十·非韩篇》
外部要用德操来树立自己，内部要用武力来装备自己；仰慕高尚德操的人可以不战而折服，抵毁德操的人由于害怕强大的军队而退却。
外以德自立，内以力自备。慕德者不战而服，犯德者畏兵而却。
Externally, we should establish ourselves with morality and equip ourselves with force internally; those who admire lofty morality can be subdued without fighting, and those who vilify morality retreat because they are afraid of the powerful army.