Mencius · Philosophy

Human Nature Is Good: The Four Sprouts

Mencius’s claim that human nature is inherently good, shown by the spontaneous alarm anyone feels on seeing a child about to fall into a well, and that morality grows from four inborn ‘sprouts’ or beginnings we all carry.

From the lesson

Around 300 BC, in an age of merciless warfare between rival Chinese states, Mencius made one of the boldest claims in the history of ethics: that human nature (xing) is fundamentally good. His proof was not an appeal to scripture or authority but a thought experiment anyone can run on themselves. Imagine, he said, that you suddenly catch sight of a small child about to tumble into a deep well. In that instant, before you can think or calculate, you feel a jolt of alarm and distress, and your body moves to help. You do not pause to weigh what you might gain. Mencius insists this reflex is universal, and that it exposes something already inside us: an inborn seed of fellow-feeling that belongs to the human heart as such. Uncover that seed, he argues, and you have found the living root of all morality.

The compassion at the well is only the first of four such seeds. Mencius calls them the four duan, a word meaning a sprout, a bud, or the tip from which a plant grows. Just as the alarm at the well is the sprout of ren (benevolence), so the feeling of shame and dislike is the sprout of yi (righteousness); the feeling of modesty and deference is the sprout of li (propriety); and the feeling of approving and disapproving, of sensing right from wrong, is the sprout of zhi (wisdom). These four feelings are not installed by society; they are the native equipment of the heart. And Mencius drives the point home with an unforgettable image: we possess these four beginnings as surely and as naturally as we possess our four limbs. To deny you have them is like denying you have arms and legs.

Mencius’s rival Gaozi argued that human nature is morally neutral: like water, which can be channelled east or west, it can be turned to good or bad with equal ease. Mencius seized the metaphor and turned it against him. Yes, he agreed, water is indifferent to east and west - but not to up and down. Water always tends downward, and in exactly the same way human nature always tends toward the good. You can splash water uphill by striking it, or force it up a slope by damming it, just as you can force a person into evil; but this violence to its nature no more shows that water naturally rises than a coerced crime shows that people are naturally bad. Left to follow their nature, Mencius insists, human beings incline toward goodness as surely as water runs down. Badness is the mark of external force and deprivation, not of nature.

This is the opening of the lesson. The rest — the dialogue, the primary source, and the recall — is in the app.

What you'll be able to recall

You learned that Mencius argued human nature is good from the spontaneous, disinterested alarm anyone feels on seeing a child about to fall into a well, and that we are born with four moral ‘sprouts’ (commiseration, shame, deference, and a sense of right and wrong). Explain the argument and the four sprouts in your ow…

Leads to Xunzi (Xun Kuang).

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