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Mencius2026-09-11By Anderson#mencius#hume#compassion#sympathy#moral sentiment#empathy#chinese philosophy

Mencius vs Hume: Why Does Compassion Fade With Distance?

無傷也，是乃仁術也，見牛未見羊也。 — No harm done. This is exactly how humaneness works: you saw the ox, and you had not seen the sheep. (《孟子·梁惠王上》1A:7, my translation)

Mencius vs Hume: Why Does Compassion Fade With Distance?

Because compassion runs on presence, and both men said so plainly. Mencius and David Hume, writing about two thousand years apart, agree that moral feeling is natural and that it's strongest for what's near. They split on the repair. Hume corrects the judgment and admits the heart won't follow. Mencius says the feeling itself can be stretched, and that failing to stretch it is a choice.

Key Takeaways

  • Hume: "We sympathize more with persons contiguous to us, than with persons remote from us" (Treatise 3.3.1).
  • Mencius: the king spared an ox because he saw it, and not the sheep because he didn't (1A:7).
  • Hume fixes distance with "steady and general points of view," plus conventions like justice.
  • Mencius fixes it with 推恩, extending the feeling, and calls failure 不為, not 不能.

What's the real difference between Mencius and Hume on compassion?

It's where the correction happens. Both think morality starts in feeling, and both see the same defect: loud up close, faint far away. Hume fixes the verdict, so you judge a stranger's virtue as you'd judge a friend's while feeling less. Mencius fixes the feeling, and the conduct that follows from it.

That sounds small. It isn't. On Hume's account, you can be a perfectly correct moral judge who never does anything for people far away. On Mencius's account, that person hasn't finished the job, because the feeling was meant to grow. Ask either man "why don't I care about tragedies in other countries?" and you'll get two very different replies.

Dobin Choi's chapter "Mencius and Hume" in the Dao Companion to the Philosophy of Mencius (Springer, 2023) puts the scholarly version neatly. Both men treat sentiments as the heart of virtue, but for Mencius they're grounds for achieving virtue through self-cultivation, while for Hume they're how we evaluate character.

What does Hume actually say about distance?

He says it directly, and he uses China as his example. In A Treatise of Human Nature 3.3.1, Hume raises an objection against his own theory: "We sympathize more with persons contiguous to us, than with persons remote from us: With our acquaintance, than with strangers: With our countrymen, than with foreigners."

If moral approval came straight from sympathy, our approval would wobble with distance too. But it doesn't: "we give the same approbation to the same moral qualities in China as in England." So Hume needs to explain how a feeling that fades produces a verdict that doesn't.

There's a small irony here worth noticing. When Hume reached for the most remote person he could imagine, he picked someone in Mencius's country. The two thinkers were already in the same sentence, on opposite ends of the distance Hume was measuring.

A note on vocabulary. Hume's "sympathy" is a technical term for the way one person's feelings get communicated to another. It's closer to what we'd now call empathy than to pity.

How does Mencius explain the ox and the sheep?

He treats it as proof the king already has what he needs. In 《孟子·梁惠王上》 (1A:7), King Xuan of Qi sees an ox being led past his hall to be slaughtered for a bell ceremony. He orders it spared: 「吾不忍其觳觫，若無罪而就死地。」 I can't bear its trembling, like an innocent man walking to the execution ground. Use a sheep instead.

The people of Qi decided he was just being cheap. An ox costs more than a sheep, so what else could it be? The king is stung, and he can't explain his own motive. Mencius explains it for him: 「無傷也，是乃仁術也，見牛未見羊也。」 No harm done. This is exactly how humaneness works: you saw the ox, and you hadn't seen the sheep.

That's the whole mechanism in one line. The king's compassion wasn't irrational or fake. It was real, and it was visual. It fired for the animal in front of him and stayed silent for the identical animal he never saw. Mencius then adds the observation that explains every kitchen ever built: 「君子遠庖廚也」, the gentleman keeps his distance from the kitchen.

Does modern psychology back them up?

On the basic defect, yes. In 2014, Daniel Västfjäll, Paul Slovic, Marcus Mayorga and Ellen Peters published "Compassion Fade: Affect and Charity Are Greatest for a Single Child in Need" in PLOS ONE. Their abstract reports that "a decline in compassion may begin with the second endangered life."

Read that next to 1A:7 and the sheep looks like the second life. The research is about numbers, not literal eyesight, so it's not a perfect match. But it lands on the same shape Mencius and Hume both described: vivid, singular, present suffering moves us, and the feeling thins out fast beyond it.

The same paper's third study is the more interesting part for this comparison. The fade was reversed "by describing multiple lives in a more unitary fashion." In other words, making the many feel present again brought the feeling back. That's not Hume's move, which leaves the feeling alone. It's much closer to what Mencius asks the king to do next.

How does Hume correct for distance?

The same way you correct your eyes. Hume compares moral judgment to perception. Objects "seem to diminish by their distance," but "we do not say, that they actually diminish by the distance; but correcting the appearance by reflection, arrive at a more constant and established judgment." For moral life, "we fix on some steady and general points of view; and always, in our thoughts, place ourselves in them."

Then comes the concession, and it's remarkably candid. The general standard works, Hume says, "though the heart does not always take part with those general notions, or regulate its love and hatred by them." Still, they "serve all our purposes in company, in the pulpit, on the theatre, and in the schools."

Look at that list. Company, pulpit, theatre, schools. What do they share? Every venue is a place where people talk about morality. Hume's correction is real, but it lives in speech and evaluation. It doesn't promise that anyone's heart, or wallet, moves any further than it did.

If the feeling won't stretch, what does Hume build instead?

Rules. This is where Hume's answer gets practical, and it's easy to miss. In Treatise 3.2.2 he says justice exists "only from the selfishness and confined generosity of men, along with the scanty provision nature has made for his wants." If "every one had the same affection and tender regard for every one as for himself," he adds, "justice and injustice would be equally unknown among mankind."

So Hume doesn't try to enlarge anybody's generosity. He takes its confinement as a fixed fact and designs around it. Property rules, promises and government are what he calls artificial virtues: conventions that get people to act as if they cared about strangers, whether or not they do.

Is that cynical? Not really. It's a serious and durable answer, and much of modern life runs on it. Tax-funded aid, automatic donations, professional codes: each is a Humean device for making confined generosity behave as if it were wider. It works without asking anyone to feel differently, which is both its strength and its limit.

How does Mencius make the king feel more?

He doesn't argue. He asks the king to measure. First comes a pair of absurd claims: a man says he can lift a hundred jun (百鈞, an enormous weight) but not a feather, or see the tip of an autumn hair but not a cartload of firewood. Then the charge: 「今恩足以及禽獸，而功不至於百姓者，獨何與？」 Your kindness reaches animals, yet it never reaches your own people. Why?

The king asks how "not doing" differs from "not being able." Mencius answers with the most quotable line in the chapter. Carrying Mount Tai under your arm and leaping the North Sea is genuinely impossible. Bending a branch for an elder and saying "I can't" 「是不為也，非不能也」: that's not doing, not inability.

Then the method. 「權，然後知輕重；度，然後知長短。物皆然，心為甚。王請度之。」 Weigh it and you know what's heavy; measure it and you know what's long. That's true of all things, and truest of the heart. Please, measure yours. Mencius hands the king a scale and asks him to put the ox on one side and his subjects on the other.

Mencius vs Hume at a glance

Mencius (孟子, c. 372–289 BCE)David Hume (1711–1776)
Where morality startsThe heart that can't bear suffering (不忍人之心)Sentiment; reason is "the slave of the passions"
The distance problemSaw the ox, not the sheep (1A:7)Sympathy fades with remoteness (Treatise 3.3.1)
What gets correctedThe feeling and the conductThe judgment
Key tool推恩, extending kindness outward"Steady and general points of view"
What handles strangersA cultivated heart that reaches themConventions: justice as an artificial virtue
Verdict on not helping不為也，非不能也: you didn't, not couldn'tThe heart "does not always take part"
Order of concern親親而仁民，仁民而愛物: kin, then people, then creaturesVaries with contiguity and acquaintance

Why doesn't Mencius just say "love everyone equally"?

Because that was Mozi's position, and Mencius thought it was wrong. His line on the Mohists in 《滕文公下》 is famously harsh: 「墨氏兼愛，是無父也。」 Mozi's impartial love means having no father. For Mencius, care is graded, and it should be. 《盡心上》 lays out the order: 「親親而仁民，仁民而愛物。」 Treat kin as kin, then extend humaneness to people, then extend care to creatures.

So Mencius is not asking you to feel for a stranger exactly what you feel for your child. He's asking you to let the feeling travel, starting from home and moving out. The famous formula in 1A:7 has that shape: 「老吾老，以及人之老；幼吾幼，以及人之幼。」 Treat your own elders as elders, and extend it to other people's elders.

That's a real difference from the impartial calculators. If you want that side of the argument, Mozi vs Bentham covers who counted everyone equally, and why.

Is the distance problem really a choice?

Mencius says mostly yes, and Hume says mostly no. That's the sharpest disagreement between them. For Hume, reason can't order you to care: "It is not contrary to reason to prefer the destruction of the whole world to the scratching of my finger" (Treatise 2.3.3). If the feeling isn't there, no argument will put it there.

Mencius agrees that arguments don't produce feelings, which is why he never argues the king into compassion. He points at compassion the king already showed. When Mencius explains the ox, the king says 「夫子言之，於我心有戚戚焉」: when you said it, my heart was moved. The feeling is already present. The only open question is whether the king will carry it further.

Here's the bet Mencius is making, and it's why his standard is harder than Hume's. He doesn't need the feeling to be equal at every distance. He needs it to be extendable, and he thinks everyone who has ever spared an ox has proven it is.

What happens if you never extend it?

Mencius says it shrinks, even at home. This is the line most readers skip: 「故推恩足以保四海，不推恩無以保妻子。」 Extend your kindness and it's enough to protect everyone within the four seas. Don't extend it, and you can't protect even your own wife and children.

Why would neglecting strangers weaken care at home? The ordinary assumption is that close care is safe and only far care is optional. Mencius reverses it. Compassion that's never exercised outward doesn't stay put at full strength. It weakens. The king who won't look past the ox is on his way to not seeing much at all.

《盡心下》 (7B:31) gives the general rule: 「人皆有所不忍，達之於其所忍，仁也。」 Everyone has things they can't bear; carrying that reaction over to the things they can bear is humaneness. The Stanford Encyclopedia's entry on Mencius describes extension as recognizing a relevant similarity, feeling the same way about it, and acting the same way toward it.

How is this different from Mencius vs Rousseau?

It's a different question. Mencius vs Rousseau asks whether human nature is good at all. Mencius says it's a sprout, and Rousseau says natural humans are neither good nor bad. That piece leans on the child at the well and the bald mountain.

This piece takes the sprout as given. Both Mencius and Hume agree we come equipped with real moral feeling, so the argument is about reach: why the feeling stops short, and what to do about it. It rests on 1A:7, the ox and the sheep, which none of our other Mencius pieces uses as its center.

If you want the harder premise, Xunzi vs Hobbes is the pairing that denies we have the sprout at all.

So what do you actually do with this?

Use Hume for systems and Mencius for yourself. Hume is right that the heart won't track every distance, so build the convention: a standing donation, a policy at work, a rule you don't renegotiate each time a headline fades. That's confined generosity, engineered.

Then do the Mencian part, which is smaller and harder:

  1. Find your ox. Name the case where you already feel it: a person, a place, a kind of suffering.
  2. Find the sheep. Ask what's relevantly similar but out of your sight.
  3. Measure. 王請度之: put the two side by side and ask honestly whether the difference is real or just distance.
  4. Bend the branch. Take one act small enough that "I can't" would be a lie.

That last step is the whole trick. Mencius never asks the king to carry Mount Tai. He asks for a gesture, then another. And if you're feeling guilty that far-off tragedies don't move you, Mencius's reply isn't a scolding. Your guilt is the ox trembling. You've already seen it.

A note on texts and translation

Hume is quoted from the Project Gutenberg edition of A Treatise of Human Nature (1739–40), Book II Part III Section 3, Book III Part II Section 2, and Book III Part III Sections 1 and 3, with his original spelling. The Chinese is quoted from the received 《孟子》 as transmitted on Chinese Wikisource: 《梁惠王上》 (1A:7), 《滕文公下》 (3B:9), 《盡心上》 (7A:45) and 《盡心下》 (7B:31). English renderings of the Mencius are my own and literal; D. C. Lau and Bryan Van Norden use different wording. Mencius's dates are conventional estimates.

Frequently asked questions

Did Mencius and Hume know about each other? No. Mencius lived about two thousand years before Hume, and there's no evidence Hume ever read him. Hume did mention China, though: his Treatise uses it as the distant case, noting "we give the same approbation to the same moral qualities in China as in England." Jeremiah Carey and Rico Vitz (2020) have since traced strong similarities in how both explain benevolence.

Why do we care less about strangers far away? Both thinkers say compassion is a feeling triggered by presence, so it's strongest for what's near and vivid. Hume wrote that we "sympathize more with persons contiguous to us." Mencius's king spared the ox he saw and not the sheep he didn't. A 2014 PLOS ONE study found compassion can start fading with the second endangered life.

What is 推恩 (tui en) in Mencius? It means extending kindness outward, and it's the method Mencius gives King Xuan in 1A:7. You take a feeling you already have for one case and carry it to a relevantly similar case you've been ignoring. Mencius says doing it is enough to protect the whole realm, and failing to do it leaves you unable to protect even your own family.

Was Hume a sentimentalist about morality? Yes. He held that moral approval "proceeds entirely from a moral taste, and from certain sentiments of pleasure or disgust," not from reason. Reason, in his most famous line, "is, and ought only to be the slave of the passions." What he added was a corrective: we judge from "steady and general points of view" so our verdicts don't wobble with distance.

Is Mencius's view of compassion the same as impartial love? No. Mencius rejected Mozi's impartial love (兼愛) outright, saying it amounts to having no father. His order of care is graded: kin first, then people, then creatures (親親而仁民，仁民而愛物). Extension means letting care travel outward from home, not flattening every attachment to the same level.

Sources

Related reading

Put your own ox in front of him

Mencius is the one to ask when you know you should care about something and can't make yourself feel it. He won't lecture you. He'll ask what you've already spared, and why it stopped there. Ask Mencius directly, or read more on his sage page.

Mencius vs Hume: Why Does Compassion Fade With Distance? · Hundred Masters