Stratagem No. 12 第十二计 Enemy-dealing stratagems (敌战计)
Take the goat in passing
Literal
In passing, lead the goat away.
On the way to a larger aim, take the small opening that will not wreck the plan, and do not despise it because it is small.
Source line
微隙在所必乘；微利在所必得。少阴，少阳。
Traditional 微隙在所必乘；微利在所必得。少陰，少陽。
A small gap must be used. A small gain must be taken. Lesser yin, lesser yang.
Icons working translation — draft, pending review
Lesser yin is the small opening on their side. Lesser yang is the small gain on yours. The pair is deliberate: this is not a grand reversal, only a minor exchange, and the manual still says it is obligatory. The commentary adds that a great movement produces many such gaps, and that the habit is useful in victory and in defeat.
三十六计 · Chinese Wikisource edition (public domain)
Meaning
Take the goat in passing means collecting a small, real advantage that appears beside your main effort, without turning aside to chase it. The goat is unguarded, close to the hand, and not the reason you set out. Leaving it is a kind of negligence, because small gaps are how a larger march pays for itself: a position, a clause, a customer, a piece of information. Taking it must not pull you off the road. The moment the goat becomes the journey, you have abandoned the plan for a windfall.
The commentary is blunt about scale. Wherever a large force moves, the gaps are many, and you need not be winning overall to use them. A retreating army can still pick up a supply point. A losing negotiation can still correct one dangerous definition. The limiting rule is the one the line does not bother to shout, and history shouts for it. A small gain that provokes a large enemy, or that delays the main aim past recovery, is not a goat. It is a new war.
The story
Qin destroys Hua, 627 BC 秦人入滑
History
In 627 BC Duke Mu of Qin sent an army under Meng Mingshi, with Xiqi Shu and Baiyi Bing, on a long raid against Zheng. Zheng was not ready for them in the way Qin hoped. At Hua, a small state on the road, they met Xian Gao, a Zheng merchant travelling to sell cattle at the Zhou capital. The Zuo Zhuan says he presented four dressed hides and twelve oxen, addressed the generals as if Zheng had sent him to welcome them, and privately sent a fast warning home.
Zheng, thus warned, made it plain that the Qin officers already inside the city were no longer a surprise. Meng Mingshi judged that Zheng was prepared, that an attack would not take it, and that a siege so far from home could not be supplied. He turned back. On the way he destroyed Hua. The original prize was gone. The goat was there, small and available, and Qin took it. The Chunqiu records the fact in four words: the men of Qin entered Hua.
Hua was not free. Jin, in mourning for Duke Wen and angry at an army that had crossed its sphere and destroyed a related state, caught the returning force in the Xiao defile and destroyed it. The three commanders were captured. A gain taken in passing had helped turn a failed raid into one of the famous defeats of the Spring and Autumn period. The stratagem’s commentary says a small advantage is worth taking even in defeat. This case shows the invoice. The goat was real. So was the ambush waiting on the road home.
Recorded in the Zuo Zhuan, Duke Xi, 33rd year, and in the Shiji’s Qin annals; the destruction of Hua was followed by Qin’s defeat at Xiao.
Sources
- Zuo Zhuan 左传, Duke Xi, 33rd year
- Sima Qian, Shiji 史记, ch. 5 (Annals of Qin)
Myth check
Popular accounts sometimes use the fall of Yu and Guo for this stratagem. That episode is stratagem 24, borrow a road to conquer Guo. The Hua raid of 627 BC is the one that matches a side prize taken when the main target has failed. Everyday speech also uses the phrase for petty theft.
Modern application
On the way through a larger deal, a side letter, a small territory, an introduction or a data set often sits unguarded. Taking it, if it does not slow the main closing, is this stratagem. Teams that pride themselves on focus walk past these and later find that a less focused rival picked them up. Teams that cannot rank their aims stop for every goat and arrive late at the thing they set out for. The discipline is a prior list: what you may take without a meeting, and what requires you to stop the march.
The Hua lesson is the one business versions of this proverb tend to skip. A small opportunistic gain can create a new enemy, or a legal and reputational cost, larger than the gain. Before the hand closes, someone has to ask who will be waiting on the road home. If the answer is a party you cannot afford to offend, the goat stays where it is.
Takeaways
- Take the small unguarded gain that lies beside the main effort.
- Do not let the small gain become a new main effort.
- Ask who will answer for it on the road home.
How to counter it
Leave nothing small and valuable unowned while you stare at your main front. And if an opponent snatches a side prize, decide at once whether answering it helps you or only delays their real mistake.
Questions
What does take the goat in passing mean?
It means seizing a small advantage that appears beside your main effort, without abandoning that effort. The classical line says a small gap must be used and a small gain must be taken. In 627 BC Qin’s army, finding Zheng warned and ready, gave up the raid and destroyed the small state of Hua on the way home. Jin then caught that army at Xiao.
Is take the goat in passing just about petty theft?
In ordinary Chinese the phrase often means picking something up because it is easy, including theft. As a stratagem it is military and practical: large movements create small openings, and those openings are worth taking in victory or defeat, provided they do not wreck the plan or summon a greater enemy.