Gao Zi I · Passage 05 / 20 · 孟子 6A.5
Mencius 6A.5: why insist that righteousness is internal
Mencius shows through the difference between honoring an elder brother and serving an older villager first that righteousness depends on the heart's judgment.
孟季子問公都子曰:「何以謂義內也?」曰:「行吾敬,故謂之內也。」「鄉人長於伯兄一歲,則誰敬?」曰:「敬兄。」「酌則誰先?」曰:「先酌鄉人。」「所敬在此,所長在彼。果在外,非由內也。」公都子不能答,以告孟子。孟子曰:「『敬叔父乎?敬弟乎?』彼將曰:『敬叔父。』曰:『弟為尸,則誰敬?』彼將曰:『敬弟。』子曰:『惡在其敬叔父也?』彼將曰:『在位故也。』子亦曰:『在位故也。』庸敬在兄,斯須之敬在鄉人。」季子聞之,曰:「敬叔父則敬,敬弟則敬。果在外,非由內也。」公都子曰:「冬日則飲湯,夏日則飲水。然則飲食亦在外也?」
The disciple Meng Ji asked Gong Du, saying, 'On what ground is it said that righteousness is internal?' Gong Du replied, 'We therein act out our feeling of respect, and therefore it is said to be internal.' The other objected, 'Suppose the case of a villager older than your elder brother by one year, to which of them would you show the greater respect?' 'To my brother,' was the reply. 'But for which of them would you first pour out wine at a feast?' 'For the villager.' Meng Ji argued, 'Now your feeling of reverence rests on the one, and now the honour due to age is rendered to the other - this is certainly determined by what is without, and does not proceed from within.' Gong Du was unable to reply, and told the conversation to Mencius. Mencius said, 'You should ask him, "Which do you respect most, your uncle, or your younger brother?" He will answer, "My uncle." Ask him again, "If your younger brother be personating a dead ancestor, to which do you show the greater respect, to him or to your uncle?" He will say, "To my younger brother." You can go on, "But where is the respect due, as you said, to your uncle?" He will reply to this, "I show the respect to my younger brother, because of the position which he occupies," and you can likewise say, "So my respect to the villager is because of the position which he occupies. Ordinarily, my respect is rendered to my elder brother; for a brief season, on occasion, it is rendered to the villager."' Meng Ji heard this and observed, 'When respect is due to my uncle, I respect him, and when respect is due to my younger brother, I respect him; the thing is certainly determined by what is without, and does not proceed from within.' Gong Du replied, 'In winter we drink things hot, in summer we drink things cold; and so, on your principle, eating and drinking also depend on what is external!'
Priority note
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Central question
Why does Mencius insist that righteousness is internal rather than fully determined by external objects?
Direct answer
Because the same respect appears in different orderings depending on the relationship at stake. If righteousness were simply injected by outside objects, such discernment would be unintelligible. The decisive factor is whether the heart sees what is fitting in the relation.
First principle
Moral action is not mechanically triggered by objects. It arises when the heart judges the structure of a relationship and settles on what is fitting.
Why it matters
This passage serves searches around righteousness as internal, Mencius on moral judgment, and the debate with Gaozi. It is a key bridge from human goodness to concrete ethical discernment.
Further reading
What this passage is doing
This is passage 5 of 20 in Gao Zi I. The cleanest entry point is "On what ground is it said that righteousness…". In context, it works as part of Mencius's argument about human goodness, desire, and the debates with Gaozi and can be read alongside Humane government / kingly way, Flood-like qi.
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Related principles
Citation note
Do not mistake 'internal' for arbitrary subjectivism. Mencius is not saying that anything the self feels is right. He is locating righteousness in the heart's truthful grasp of relation and order.