The state of Qin attacked Zhao, and the King of Zhao sent Su Dai to persuade the King of Qin, saying: "I have heard that when a state faces war, it should tremble with caution and grow ever more vigilant with each passing day. Zhao is not stronger than Qin, yet Qin attacks it—why? Because Zhao is weak. I have also heard that to speak without understanding is unwise, and to understand yet remain silent is disloyal to one's sovereign. A minister who is disloyal deserves death; one who speaks improperly also deserves death. Nevertheless, I wish to speak my mind fully. If Your Majesty truly heeds my counsel, then though Zhao be weak, it may yet be preserved; though Qin be strong, it surely cannot do as it pleases against Zhao. Why? Qin's attack on Zhao is not born of enmity, but of a desire to expand its territory. To expand territory is not Qin's interest alone—all the states under heaven desire it. Now Qin presses its armies upon Zhao, and Zhao will surely defend steadfastly. Even if Qin triumphs, it must deplete its own forces; if it fails to win, then the feudal lords will surely seize the moment of Qin's exhaustion to strike. This is what is called lending weapons to thieves and giving grain to robbers. Moreover, Zhao is the shield of Yan and Qi; if Zhao falls, Yan and Qi are endangered. If Yan and Qi do not come to Zhao's aid, then Qin may work its will in Zhao; once Qin works its will in Zhao, then Yan and Qi are also imperiled. I have heard that when the lips are gone, the teeth feel the cold. Now Qin's attack on Zhao is not to Qin's advantage—in truth, it is a cause for Qin's concern. If Your Majesty heeds my counsel, then Qin may expand its territory without effort, Zhao may preserve itself without battle, and Yan and Qi will suffer no calamity." The King of Qin deemed his words right and withdrew his troops.
💡 商战启示录
The essence of Su Dai's persuasion of the King of Qin lay in "risk transference" and "interest restructuring." He did not plead directly, but instead approached the matter from the strategic costs and collateral risks facing the state of Qin, pointing out that a "forced assault on a weaker state" might trigger a chain reaction of "vassal states exploiting Qin's exhaustion"—much like in modern business, where a company that forcibly seizes market share through low pricing or subsidies may suppress competitors in the short term, yet risk triggering price wars, regulatory intervention, or supply-chain backlash, ultimately eroding its own profits and deteriorating the industry ecosystem. Su Dai's proposed alternative of "expanding territory without exertion" was, in essence, a guide to steer the King of Qin from "confrontation" toward "mutual benefit"—akin to proposing "cooperative mergers" rather than "vicious competition" in commercial negotiations, or achieving expansion through "ecosystem alliances" rather than "unilateral monopoly." For instance, if a tech giant were to forcibly acquire a smaller company, it might face antitrust scrutiny and talent attrition; but by opting for investment or strategic partnership instead, it could share in innovative outcomes while mitigating risks. Su Dai also implicitly employed the game-theoretic logic of "when the lips are gone, the teeth feel the cold," reminding the King of Qin to consider the reactions of third parties—just as modern enterprises, when making decisions, must anticipate the interconnected responses of competitors, suppliers, and customers, lest they "win the battle but lose the war." His success lay in making the King of Qin see that "not attacking" served his long-term interests better than "attacking"—a classical embodiment of the "retreat to advance" or "blue ocean strategy" in business strategy.