Ruzhang HE and others insisted to conclude treaties with the United States based on the point of view of "Balance of Power," which was main-stream of modern diplomacy at that time and the point of view was from "law of proportionality" in the first volume of "Bankoku Koho."
何如璋らはアメリカと条約を締結することを、近代外交で主流だった「勢力均衡」(BalanceofPower)の側面から説得したが、その出所は『万国公法』第一巻の「均勢の法」に拠るとされる（徐2001）。