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。

过去充满了声音——我们只需要倾听。

The human being is essentially self-determining; he becomes what he wills himself to be.

Read not to contradict and confute; nor to believe and take for granted; nor to find talk and discourse; but to weigh and consider.

You have to be run by missionaries, not mercenaries.

我们有责任以最高效、最环保的方式提供能源。