《明史·列传·卷九十二》
私下曾谋划着这件事：秋高马肥，弓矢劲利，他们聚集而进攻我们，而我们则分散而防守，让他们占上风；冬深水枯，马无隔夜之粮，春寒阴雨，土地没有干燥的地方，他们的优势渐弱，我们利用这一时机，则中国占优势。
窃尝计之：秋高马肥，弓矢劲利，彼聚而攻，我散而守，则彼胜；冬深水枯，马无宿藁，春寒阴雨，坏无燥土，彼势渐弱，我乘其弊，则中国胜。
I have been planning something privately: when autumn is high and horses are fat, bows and arrows are strong and sharp, they gather and attack us, while we disperse and defend, letting them prevail; winter is deep and water is dry, and horses will not have enough food for the night; spring is cold and rainy, and there is no dry place on the land, their advantage will gradually weaken, and we will seize this opportunity, then China will prevail.