Definition
Self-examination is the deliberate inward look by which a Stoic inspects their own mind — the impressions they accepted, the judgments they formed, the motives behind their actions. It treats the self as the proper object of scrutiny, since the self is the one thing fully within one's power.
The Stoics inherited the conviction, voiced by Socrates, that an unexamined life is not worth living. They made it practical, turning examination into a regular discipline rather than an occasional crisis.
Why it matters
How it works
Self-examination operates on two timescales. In the moment, the attentive mind watches its own impressions and impulses as they arise. At day's end, a structured review revisits the whole day, asking what was done well, what was done poorly, and what could be done better.
The examination must be candid to be useful, yet not cruel — its purpose is improvement, not punishment. Many Stoics, Marcus Aurelius among them, used writing as the medium, finding that putting thought on the page sharpens and steadies the inquiry.