Li Lou I · Passage 12 / 28 · 孟子 4A.12
Mencius 4A.12: sincerity is Heaven's way and man's work
Mencius traces political trust, friendship, and filial harmony back to the self's sincerity, arguing that without inner truth aligned to the good.
孟子曰:「居下位而不獲於上,民不可得而治也。獲於上有道,不信於友,弗獲於上矣。信於友有道,事親弗悅,弗信於友矣。悅親有道,反身不誠,不悅於親矣。誠身有道,不明乎善,不誠其身矣。是故誠者,天之道也。思誠者,人之道也。至誠而不動者,未之有也。不誠,未有能動者也。」
Mencius said, 'When those occupying inferior situations do not obtain the confidence of the sovereign, they cannot succeed in governing the people. There is a way to obtain the confidence of the sovereign: if one is not trusted by his friends, he will not obtain the confidence of his sovereign. There is a way of being trusted by one's friends: if one do not serve his parents so as to make them pleased, he will not be trusted by his friends. There is a way to make one's parents pleased: if one, on turning his thoughts inwards, finds a want of sincerity, he will not give pleasure to his parents. There is a way to the attainment of sincerity in one's self: if a man do not understand what is good, he will not attain sincerity in himself. Therefore, sincerity is the way of Heaven. To think how to be sincere is the way of man. Never has there been one possessed of complete sincerity, who did not move others. Never has there been one who had not sincerity who was able to move others.'
Priority note
A human-edited reading layer
Central question
Why does Mencius trace confidence from above, trust among friends, and delight of parents back to sincerity of the self?
Direct answer
Because outward trust, harmony, and governing power are not isolated techniques. If the self is not sincere, parents do not truly delight, friends do not truly trust, and superiors do not truly rely. Mencius drives all relational competence back to whether the person inwardly stands true.
First principle
Stable outer relations finally depend on whether the inner root is real. Without sincerity, most later techniques fail in sequence.
Why it matters
This passage serves searches around sincerity, Mencius, and the relation of self-cultivation to public order. It is a key bridge text between inner truth and outer governance.
Further reading
What this passage is doing
This is passage 12 of 28 in Li Lou I. The cleanest entry point is "When those occupying inferior situations do not obtain…". In context, it works as part of Mencius's argument about self-examination, disorder, and keeping the way and can be read alongside Humane government / kingly way.
Broader search routes
If you came here with a wider question, start from the right hub page
Humane government: political order begins with livelihood
If your real query is broader than one citation, start from the theme page and use this passage as proof text.
Open humane government / kingly wayWho is Mencius?
If you first need the person, the aliases, and why he matters, start from the about page.
Open About MenciusMencius quotes and sayings
If you arrived through a famous line, start from the quotes hub and then return to the exact passage.
Open Mencius quotesMencius full text and works of Mencius
If you need the book structure, the works of Mencius, or where to read the text, start from the full-text hub.
Open the full-text hubBook context
Li Lou I often approaches disorder through self-examination and the standards for keeping the way.
Related principles
Citation note
Do not read sincerity here as mere emotional openness. Mencius means inner alignment with the good; without clarity about the good, real sincerity cannot exist.