《资治通鉴·秦纪》112-1｜姚贾是如何凭一张嘴破四国合纵？

Summary

This 芮淇讲透资治通鉴 episode follows the Qin conquest sequence from 李斯’s proposal to attack 韩国 first into 韩非’s written counterargument, 《存韩》, and then into 姚贾’s mission against a Zhao-Han-Wei-Chu anti-Qin coalition. The source presents Yao Jia’s success as more than personal eloquence: 嬴政 / 秦始皇 supplies conspicuous backing, resources, and diplomatic status, while Yao Jia exploits the fragility of 合纵 through persuasion, bribery, and selective pressure.

The episode also sharpens Li Si’s late-Qin role. Li Si first answers Han Fei’s attempt to protect Han by stressing Han’s uncertainty as a rear risk, then turns Yao Jia from a 赵国 envoy into a Qin asset through rumor and recommendation, before the transcript cuts off as Li Si begins accusing Han Fei of remaining loyal to Han.

Key Claims

• 李斯 argues that Qin should attack 韩国 first because Han is small, weak, and close to Qin.
• 韩非, trying to protect Han, writes 《存韩》 because speech difficulty makes oral persuasion harder for him.
• Han Fei’s argument claims Han has not been Qin’s real enemy and redirects Qin’s attention toward 赵国, which is associated with anti-Qin 合纵 planning.
• The episode says Han Fei’s plan hides a dangerous uncertainty: if Qin attacks Zhao and 齐国 joins the war, Han might reverse course and endanger Qin from the rear.
• 姚贾 is introduced as a low-origin man from 卫国 whose father guarded a gate and who was later attacked by Han Fei as having a theft record in 大梁.
• Zhao initially values Yao Jia’s speech talent enough to send him to 韩国, 魏国, and 楚国 to promote anti-Qin alignment.
• Li Si responds by spreading damaging information in Zhao, making Yao Jia look like a former thief using diplomatic travel for private enrichment; Zhao recalls and expels him.
• Yao Jia interprets the attack as evidence that Qin recognizes his value, goes to 咸阳, and is recommended by Li Si to Ying Zheng.
• Ying Zheng’s heavy gifts of carriages, horses, money, clothing, and sword give Yao Jia more than comfort; they make him visibly backed by the Qin king.
• Over three years, Yao Jia visits Han, Wei, Chu, and Zhao, breaks their coalition plan, and uses bribes to make powerful local figures speak for him.
• The episode treats this as a concrete form of 利益瓦解合纵: Qin uses money, status, and inside-court incentives to prevent coordinated anti-Qin action before armies decide the issue.
• After Yao Jia’s success, the episode turns to Li Si’s attack on Han Fei, but the transcript stops before completing that branch.

Key Quotes

“姚贾破坏四国合纵，不只是靠“会说话”” - source summary of the episode’s main correction to a simple eloquence story.

“四国联盟本来不牢靠” - source summary of the weakness Yao Jia’s mission exploits.

Connections

• Qinji 110-2, 李斯, 《谏逐客书》, and 逐客令 - direct background for Qin retaining and using guest talent rather than expelling it.
• 韩非, 《存韩》, 韩国, and 赵国 - Han Fei’s written attempt to redirect Qin’s first conquest target.
• 姚贾, 嬴政 / 秦始皇, 秦国, and 咸阳 - low-origin envoy, royal sponsor, court setting, and diplomatic authorization.
• 《战国策》 - source tradition used for Yao Jia’s biography and the Qin court exchange around the four-state coalition.
• 合纵, 利益瓦解合纵, 反间流言楔入, and 乱世职业经理人式流动 - coalition, sabotage, rumor, and mobile-talent frames extended by this episode.
• 韩国, 魏国, 楚国, and 赵国 - four target states in Yao Jia’s anti-hezong mission.

Contradictions

• No direct contradiction with existing wiki content is asserted.
• Source-scope caution: the transcript is already summarized and cuts off during Li Si’s accusation against Han Fei, so this page records only the completed Yao Jia branch and the opening of the Han Fei attack.
• Source-scope caution: Yao Jia’s motives, Li Si’s rumor operation, and Ying Zheng’s reasons for lavish support are preserved as the episode’s reading of the 《战国策》 story rather than independently harmonized biography.