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The most profound ideas in mathematics often arise from the simplest observations.

算法研究既關乎邏輯和數學，也關乎創造力。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

技術和傳統必須攜手并進。過去的智慧可以指導未來的創新。

如果服務得好，臨時的東西可以變成永久的。