《汉书·传·蒯伍江息夫传》
他骑马上下山，驰骋如飞，有这样过人的才能，又多次带兵打仗，熟悉军事，不容易对付。
骑上下山如飞，材力绝人如此，数将习兵，未易当也。
He galloped up and down the mountains, as fast as an arrow from a bow, with such extraordinary abilities, and he has fought many battles and was familiar with military science, he is not easy to deal with.