农民增收不能只靠政策，更要靠市场机制和产业升级。
Farmers' income growth cannot rely solely on policies, but more on market mechanisms and industrial upgrading.
All the effects of nature are only the mathematical consequences of a small number of immutable laws.
The poverty of our century is unlike that of any other. It is not, as poverty was before, the result of natural scarcity, but of a set of priorities imposed upon the rest of the world by the rich.
