Horses can take risks, and cultivated land is not as good as cattle. A strong car can carry a load, but it is better to sail across the river. Wise men are hard to find.

Talent and luxury are applicable, so be careful not to ask too much.

This poem means that everything has relativity, and in different situations, it has different uses and different value bodies. As far as the value of a ton of rice and a ton of gold is concerned, it must be divided into two parts and analyzed from a dialectical point of view.