Li Lou II · Passage 12 / 33 · 孟子 4B.12

Mencius 4B.12: the great person does not lose

For Mencius, greatness is not hardened worldliness but the preservation of an uncorrupted moral heart in the midst of complexity.

孟子曰：「大人者，不失其赤子之心者也。」

mèng zǐ yuē：「dà rén zhě， bù shī qí chì zǐ zhī xīn zhě yě。」

Mencius said, 'The great man is he who does not lose his child's-heart.'

Priority note

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Central question

Why does Mencius define the great person as one who does not lose the child's heart?

Direct answer

Because true maturity is not a heart made numb. It is the ability to pass through worldly complexity without losing the original clarity by which one still feels and judges well.

First principle

If growth costs the loss of the original heart, it is damage rather than fulfillment.

Why it matters

This is one of Mencius's most quotable lines and naturally serves search intent around innocence, integrity, and preserving the heart in a hard world.

What this passage is doing

This is passage 12 of 33 in Li Lou II. The cleanest entry point is "The great man is he who does not…". In context, it works as part of Mencius's argument about seeing people clearly, ritual restraint, and governing relationships and can be read alongside Four beginnings / four sprouts.

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