司马昭之心,路人皆知

• An annotated quotation from annals of Han and Jin in annals of the three Kingdoms. Kingdom of Wei. Biography of Duke Gao Guixiang: during the reign of Caomao, emperor of the kingdom of Wei, known by his title as Duke Gao Guixiang before he ascended the throne, general Sima Zhao monopolized power and conspired to usurp the ministers, "Sima Zhao's evil intent is known to all.' the phrase has cone to imply that everybody knows about it.