Li Si applied Legalist administrative thought to Qin unification, arguing for centralized command, standardized writing and measures, and control of rival intellectual authorities.
Intellectual setting
Li Si's career spans the Qin conquest and the short-lived empire, where the ambition to unify institutions generated both administrative capacity and political violence.
Key ideas
Centralization
Commanderies and standardized institutions reduce hereditary regional power and make imperial administration more uniform.
Historical change
His memorial against private textual traditions argues that policies appropriate to one age need not bind another.
Legacy
He is a pivotal, contested figure in histories of Chinese empire, Legalism, textual control, and the costs of centralized rule.