每个数学问题都有一个解决方案；只是需要时间和创造力来找到它。
Every mathematical problem has a solution; it just takes time and creativity to find it.
There is no necessary connection between law and morality.
To be a poet is to have a soul so quick to discern, that no shade of quality escapes it.
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。