《资治通鉴·宋纪·宋纪六》
如果一定要照寇谦之所说的去做，我请求建造在万仞高的东山上，这样做，工事就容易些。 
必如谦之所言，请因东山万仞之高，为功差易。 
If we must do as proposed by Kou Qianzhi, I request to build on the ten thousand ren high east mountain, doing so will make construction easier.