《资治通鉴·汉纪·汉纪三十五》
所以看到南方的犀布、瑁，就设置珠崖等七郡；为酱、竹杖所动，就设置柯、越两郡；听说天马、葡萄，则远交大宛、安息。从此各方的珍奇物品，从四面八方进入中国。
故能睹犀布、玳瑁，则建珠厓七郡；感蒟酱、竹杖，则开牂柯、越巂；闻天马、蒲陶，则通大宛、安息；自是殊方异物，四面而至。
Therefore, when he saw rhinoceros and tortoiseshell in the south, he established seven counties including Zhuya; when he was motivated by sauce and bamboo sticks, he established Ke and Yue counties; when he heard about heavenly horses and grapes, he had diplomatic relations with Dawan and Anxi. Since then, exotic goods from all sides have entered China from all directions.