《三国志·魏书·王毋丘诸葛邓钟传》
蜀国的丞相陈壮被秦捉拿，公孙述被吴汉所杀，天下的险要地区，并不是某一姓氏的统治者能长久控制的，这些也是你们所得知的。
蜀相壮见禽於秦，公孙述授首于汉，九州之险，是非一姓。此皆诸贤所备闻也。
Chen Zhuang, Prime Minister of Shu, was captured by Qin, and Gongsun Shu was killed by Wu Han. The strategic points in the world are not something that rulers of a single surname can control for a long time, which you too must know.