除非把爱国主义从人类中剔除,否则世界永远不会安宁。
You'll never have a quiet world till you knock the patriotism out of the human race.
An expert is a person who has made all the mistakes that can be made in a very narrow field.
Forests are the lungs of the earth, and we must protect them with the same urgency as our own health.
In agriculture, patience yields the sweetest rewards.