The three-point daily self-examination

End each day by asking three questions Zengzi — Confucius’s disciple — prescribed: loyalty, trustworthiness, mastery.

Why it works

Deliberate retrospective review creates a feedback loop between aspiration and action. The three Confucian questions (Was I loyal in service? Was I sincere with friends? Did I practise what I was taught?) are concrete enough to generate honest answers, unlike generic self-review, which tends to slide into rationalisation. The practice primes the same behaviour for tomorrow through memory consolidation during sleep.

How to do it

1. Before sleep, spend three minutes on Zengzi’s three questions: (1) Was I fully engaged in any task I did for others today? (2) Was I honest and reliable with the people close to me? (3) Did I actually apply what I know, or only perform knowing it?
2. For each question, name one specific instance — not a general verdict.
3. Where you fell short, name the gap precisely without self-flagellation.
4. Set one micro-intention for tomorrow addressing the sharpest gap.

Evidence

End-of-day structured review is consistent with metacognitive self-regulation research and with the evening reflection practices of both Stoicism and structured coaching. Specificity — naming an instance rather than a verdict — is associated with more actionable learning from review. (mechanistic)

The three-question format itself has not been studied in trials; the underlying mechanism (structured reflection for self-regulation) is supported. The Confucian framing is traditional, not empirically derived.

Common mistake

Answering the three questions at the level of the day as a whole ("I was mostly trustworthy today") rather than naming specific moments. Generalities prevent learning; specifics enable it.