The Old Man Lost His Horse
The Teaching
An old man living at the frontier loses his horse, and his neighbours come to console him. Months later the horse returns, leading others — and the neighbours come to congratulate him. His son rides one of the new horses, falls, and shatters his leg; the neighbours console. Then war comes to the frontier, and the able-bodied young men are conscripted, and nearly all of them die — and the boy with the ruined leg is passed over, and lives.
The story appears in the eighteenth chapter of the Huainanzi, the second-century-BCE compendium — the chapter concerned with the world of human affairs. Most people meet it as the proverb it later became, which compresses the whole sequence into a question: how do you know it is not good fortune? The text itself goes further than its proverb. It does not ask whether you can know. It states that blessing turns to disaster and disaster to blessing, that the transformations never come to an end — and that their depths cannot be fathomed.
— Huainanzi, ch. 18, "In the World of Man," 2nd c. BCE. Retold rather than quoted: the chapter's closing lines are described here because no published English rendering of them has been verified against a primary edition. Working source: Larre, Robinet & Rochat de la Vallée, Les grands traités du Huainan zi (Institut Ricci, 1993), ch. 18. The four-character proverb the story became is its descendant, not its source.
Commentary
The proverb says your sight is short. The source says the thing itself has no floor — the limit is not in the viewer but in the world, and no widening of the view arrives at a final verdict, because the sequence does not end.
That distinction is this teaching's work. The Gita and the Stoics supply the discipline for acting when outcomes are not yours; this parable supplies the reason the discipline is needed. Every judgement in the story is rendered honestly, by decent people, on the evidence available — and every one of them is overturned by the next event. The neighbours are never wrong about what happened. They are wrong about where the story is.
The Map already holds this image in miniature: the commentary on Ecclesiastes describes a waterfall seen from a great height — what appears terminal up close revealed as part of a continuous flow. The horse parable is that same widening applied not to death but to judgement, and extended one turn further: from high enough, even the wide view is inside something wider. Verdicts are not wrong. They are early. And per the teaching's companion on the Greek side of the Map, some of them never stop being early.