选择最好的生活，因为习惯会使它愉快。

What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.

艺术家的职责是让不可见的东西变得可见。

科学的美丽在于它不断进化，总有新的东西可以发现。

P与NP问题是计算机科学中最重要的未解决问题之一。