《资治通鉴·齐纪·齐纪六》
最后班师回朝，没有留下兵马守护任何一座城市，也没有开辟一亩土地，难道是没有人力吗？不是！
班师之日，兵不戍一城，土不辟一廛。夫岂无人？
In the end, he returned to the imperial court without leaving any troops to guard any city or opening up an inch of land. Was it because of a lack of manpower? No!