Lìshǐ shàng yǐ qīngjūncè wéi míng de pànluàn bùshèng-méijǔ.
History is full of rebellions fought in the name of cleaning out the ruler's advisers.
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history
From 《公羊传·定公十三年》: 逐君侧之恶人 — drive out the evil men beside the lord. Most famously the slogan of the Tang An Lushan rebellion and the Ming Jingnan campaign. Almost always a fig-leaf for seizing power yourself.