跨境合作至关重要——没有任何一个国家能单独解决全球粮食安全问题。
【释义】:说话要小心谨慎,行事要深思熟虑。
Sustainability is not an option, it's an obligation to future generations.
The books that the world calls immoral are books that show the world its own shame.
Mathematics advances not by the efforts of individuals alone but through the collective work of generations.