乳制品生产的创新必须在效率和环境责任之间取得平衡。
种一棵树最好的时间是20年前,其次是现在。
按照我们的本性行事就是美德。
The beauty of mathematics only shows itself to more patient followers.
The end of history is not the end of events, but the end of the evolution of human political and social institutions.
"Language is the house of being. In its home man dwells."