粮食问题不仅是经济问题，更是政治问题，关系到国家的长治久安。
The food issue is not only an economic issue, but also a political one, related to the long-term stability of the country.
"Imagination is the most powerful tool we have to create a better world."
胆识要大，心思要细密；智慧要圆融，行为要方正。