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形式系統的發展徹底改變了我們對數學的理解。

沉默有時比言語更有力量。

I believe that one can write a great opera with real characters， real emotions， and real situations.

Strategic planning is not about predicting the future, but about preparing for it.

The world won't remember what you say, but it will never forget what you do.

I'm not perfect, but I pursue perfection.

談論天氣是無趣人類最后的避難所。