"The act of writing is an act of resistance against forgetting and oblivion."

The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

只有向后看才能理解生活；但要生活好，则必须向前看。

Diplomacy requires strategic and long-term thinking to achieve a country's long-term interests and security.

"Always be transparent about the limitations of your study."

困难不在于提出新观念，而在于摆脱旧观念。