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Confucius on Excess and Shortfall: Why the Middle Is Not Always Right
Too much and too little can miss a requirement in different ways. The right response needs the requirement, rather than an automatic midpoint.
The exchange concerns people, not quantities
In Xianjin, Zigong asks whether Shi or Shang is more worthy. Confucius describes one as going beyond and the other as falling short. Zigong asks whether the first is therefore better, and Confucius answers that excess is like shortfall. The reply challenges a comparison: doing more than another person does not automatically make someone better.
The short passage supplies no specific incident being assessed and no numerical scale for the two men. We should not add that missing scene. It also gives no rule for doing half of everything or splitting every disagreement evenly. Without knowing the purpose and what would fit it, standing between two positions cannot establish that our own position is appropriate.
Opposite mistakes can both miss the requirement
An explanation can be too slight to make a passage clear, or so expansive that it introduces claims the author never made. The errors move in opposite directions while both missing what explanation requires. The Analects reply resists awarding extra credit merely because one error appears more active or ambitious.
This comparison is a contemporary reading exercise, not a claim about what Shi and Shang were doing in the original exchange. Nor must opposite errors have identical consequences in a real task. Their costs and corrections can differ. The ancient comparison and a present day calculation of harm are distinct questions, each requiring attention to what is actually being evaluated.
Find a measure in the task itself
Imagine explaining a line position to someone reading the I Ching for the first time. A single unexplained term may leave them confused, while introducing many selection systems may hide the elementary question. Averaging the lengths of these replies does not determine a useful explanation. The reader’s present question gives a firmer basis for deciding what to include.
If the question concerns the third position, explain the upward order of the six lines and the place being asked about before adding further detail as needed. This is hypothetical, not a proven teaching result. A more experienced reader may need comparisons of editions or commentaries. Appropriateness depends on the relation between the request, the reader, and the explanation, rather than a permanently correct word count.
Compromise does not remove the need for judgement
Two opinions may not have equally good evidence. One may rest on a checked passage and another on a guess. Placing the conclusion halfway between them does not improve the evidence behind the guess. Compromise can be a coordination choice, but its justification must be explained separately. This Analects saying does not automatically supply that justification.
Some requirements are definite: a quotation should be accurate, and work completed should be distinguished from work not completed. Approximately accurate is not always an appropriate compromise. Judgement sometimes requires flexibility and sometimes requires keeping a necessary boundary. A gentle tone alone does not establish that a conclusion has the right measure or that an inconvenient argument can be dismissed as extreme.
Different errors need different corrections
Where an explanation is insufficient, add the missing condition. Where it overreaches, remove the unsupported inference or unnecessary branch. Telling both sides to show moderation does not identify either next step. The correction should answer a particular mismatch between the work and its purpose, with a reason that another person can inspect.
Feedback can ask whether the reader understood the question, found the evidence, or confused an illustration with an event. A pleasant reaction alone is not enough. Check whether the addition or removal resolved the specific problem. Excess and shortfall gives no automatic honour to doing more and no automatic correctness to a midpoint. Both amount and choice remain accountable to the matter being undertaken. A reader who can repeat a term but still cannot explain its role may need another example, while a reader already able to use it may need the explanation to stop.
Sources and further reading
Modern reading examples are hypothetical applications; no invented scene for the original dialogue or proven teaching outcome is supplied.