Stoic Concept

Katalexis

The act of grasping truth through reliable knowledge.

Katalexis is the mental act of firmly grasping truth through kataleptic impressions. It represents the moment when we achieve certain knowledge about something rather than mere opinion or belief. This cognitive achievement requires both clear perception and sound judgment. Katalexis is what separates genuine knowledge from guesswork or wishful thinking. Developing this capacity helps us build our understanding on solid foundations rather than uncertain assumptions.

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