Test the impression

Hand a cashier a coin and watch what happens. They feel the weight, check the edge, maybe tip it to the light. Years of fakes taught them not to accept a thing just because it showed up looking like money.

Epictetus used exactly this image (Discourses 1.20, Oldfather). We test a coin with sight, touch, sound — and then accept the next thought that lands in our head with no test at all. The email reads angry. The new policy is aimed at you. The quiet from the next room means trouble. Each one arrives looking like a real coin, and most of us pocket it on sight.

Wisdom, for the Stoics, isn't having more impressions. It's assenting well — pausing at the moment a thought asks to be believed, and checking it before you let it run your afternoon. The barista, the nurse, the driver, the contractor: everyone gets handed dozens of these a day. The skilled ones bite down on a few before spending them.

You don't have to interrogate every thought. Just stop treating the loud ones as automatically true.