《资治通鉴·晋纪·晋纪十》
不如选择一个便利的地方占据它，多多聚集储备粮食，尊奉平阳以谋取幽州、并州，这是霸王的功业。
不若择便地而据之，广聚粮储，西禀平阳以图幽、并，此霸王之业也。
It is better to choose a convenient place to occupy it, gather more and more food, respect Pingyang to seek Youzhou and Bingzhou, this is the achievement of the overlord.