In his annotations to Zhuge Jin's biography in the "Sanguozhi", the fifth-century historian Pei Songzhi rebutted Zhuge Jin's speech to Liu Bei. From Pei Songzhi's point of view, Liu Bei had good reason(s) to go to war with Sun Quan because Sun Quan thwarted his attempts to revive the Eastern Han dynasty when he broke the Sun–Liu alliance and seized Jing Province. Pei Songzhi also noted that Liu Bei's relationship with Guan Yu was so close that it could not be described in words. He remarked that if Liu Bei and Guan Yu's relationship were to be described in words in the "Sanguozhi", it would take up so much space that it becomes a waste of space.