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我這一代人最偉大的發現是，一個人可以通過改變態度來改變他的生活。

The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.

After climbing a great hill, one only finds that there are many more hills to climb.

生活就像一面鏡子，你朝它皺眉，它也朝你皺眉；你微笑，它也報以微笑。

The only thing more dangerous than a man with nothing to lose is a man with everything to gain.

我喜歡進步的過程。