《宋史·列传·卷一百七十一》
兵家上策是破坏敌人的计划，这是不争夺的争夺。 于是设先锋军，使襄阳、郢州归降的人充当。
上兵伐谋，此不争之争也。 乃置先锋军，以襄、郢归顺人隶焉。
The best strategy of millitary is to destroy the enemy’s plan, it is the contention without fighting. At that time, he planned to establish an advance force, and it was appointed by those who surrendered from Xiangyang and Yizhou.