《管子·匡君小匡》
所以，雉羽和摈尾一类的珍品，不必远集而自至；竹箭一类的产品，一国内就有浮余。奇怪的商品经常到来，珍异的东西也有聚集。
是以羽旄不求而至，竹筋有余于国；奇怪时来，珍异物聚。
Therefore, precious items such as pheasant feathers and pelican tails come on their own without needing to be collected from far away; products such as bamboo arrows have a surplus within the country. Strange commodities often arrive, and rare and exotic things are also gathered.