Review the day each night

Before sleep, put the day on trial: what did I do well, what badly, what will I do differently?

Why it works

Seneca describes ending each day by examining his own conduct as a calm judge, not a harsh one. The review turns lived experience into feedback — you catch the reactions and choices you want to change while they’re fresh, before they harden into patterns. Doing it nightly also closes the day’s open loops, which can settle the mind for sleep.

How to do it

1. Each night, replay the day and ask: what did I do well, what badly, what could I do better?
2. Be specific and factual — you’re gathering data, not delivering a sentence.
3. Carry one concrete adjustment into tomorrow.

Evidence

Maps onto self-monitoring and structured reflection, both linked to behavior change and learning. Reflective and expressive writing is associated with better emotional processing. The Stoic question-set itself isn’t a tested protocol. (observational)

The general mechanisms are studied; Seneca’s exact nightly format is philosophical. For people prone to rumination, the "calm judge" framing matters — done harshly it can disturb sleep rather than settle it.

Common mistake

Turning the review into a nightly self-interrogation that breeds guilt. Seneca explicitly models it as fair and dispassionate — examination, not self-punishment.