King Yan said to Su Dai, "I sincerely hope you will come and assist me. Would you be willing to do so?" Su Dai replied, "I have heard that a loyal minister does not serve two lords, and a chaste woman does not marry two husbands. Now that Your Majesty desires my loyalty, allow me to explain on your behalf. I have heard that the King of Qi places great trust in me. If I make a request to Qi, Qi is certain to grant it. I beg to undertake a mission to Qi for Your Majesty, to observe the movements of that state. If the King of Qi grants my request, then Your Majesty's kingdom may be secured; if he does not, then Your Majesty's kingdom is imperiled. Pray let me attempt this." King Yan said, "Very well." Thereupon he dispatched Su Dai to Qi. Upon arriving in Qi, Su Dai said to the King of Qi, "The King of Yan is most eager to foster amity with Your Majesty, and is willing to follow Your Majesty with his entire state." The King of Qi was greatly delighted, and thereupon reconciled with Yan. After Su Dai returned to Yan, the King of Yan rewarded him handsomely.
💡 商战启示录
Su Dai outwardly championed the maxim that "a loyal minister serves but one master," yet in practice he played the role of a double agent. By orchestrating information in both directions, he secured the trust of both Yan and Qi, ultimately securing diplomatic leverage for Yan. This mirrors the extreme application of "information asymmetry" and "leverage of trust" in modern business warfare. For instance, a tech startup CEO during a Series A funding round might hint to Investor A that Investor B has already indicated a high valuation, while subtly suggesting to Investor B that Investor A is about to lead the round—thereby inflating the valuation and accelerating the decision. Yet this tactic is akin to walking a tightrope: once information leaks and trust collapses, it leads to a lose-lose outcome. A more sustainable strategy is "coopetition"—as seen when Huawei formed a joint venture with 3Com in its early days, leveraging the partner's channels and brand endorsement while quietly cultivating its own technological capabilities, ultimately achieving independent ascendancy. Su Dai's brilliance lay in "exchanging the intangible for the tangible"—using promises and intelligence to secure real benefits, rather than resorting to empty deception. Modern leaders should learn from his wisdom of "leveraging circumstances"—by deeply understanding the needs of all parties and designing win-win solutions, rather than simply lying. At the same time, they must establish "firewall" mechanisms to ensure tiered management of core information, guarding against the backlash risk inherent in double-agent strategies. The true master of business warfare, like Su Dai, strategizes from within the tent—yet must anchor such maneuvering in long-term credibility to stand unshaken amid the complexities of the commercial ecosystem.