It is the sentence in Ouyang Xiu's poem "Mei Yu Sheng sends Ginkgo biloba". Goose feathers are given thousands of miles, and people are expensive; Although there are hundreds of duck feet, they are sincere and precious.
This ancient poem means that a person sends you goose feathers thousands of miles away, but in fact he is not interested in things but people. This meaning can also be expressed by a two-part allegorical saying, that is, "send goose feathers a thousand miles away." This two-part allegorical saying means that the gift given to others or others for themselves, though insignificant, is very valuable. Although gifts are as worthless as goose feathers, the friendship contained in thousands of miles is profound! Sending goose feathers a thousand miles away-courtesy is light and affection is heavy, which comes from the word "satirizing flowers and making stones-Linjiang Xianzi" quoted by Xing Junchen in Shen Zuozhe's Yu Jian in the Song Dynasty. There is a sentence in the word "towering, things are light and people are heavy, and goose feathers are sent thousands of miles away."