The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.

The challenge in computer science is not just to create new technologies, but to ensure they are used ethically and responsibly.

数学不仅仅是关于数字，而是关于模式、结构和关系。

科学是关于后果的知识，以及一个事实对另一个事实的依赖。

【释义】：在爱一个人时，也要看清对方的缺点；在憎恨一个人时，也要看到对方的优点。