The only fence against the world is a thorough knowledge of it.

勇敢就是无条件地爱一个人，不期待任何回报。

The architect's role is to be a mediator between dreams and reality.

The best programs are written so that computing machines can perform them quickly and so that human beings can understand them clearly. A programmer is ideally an essayist who works with traditional aesthetic and literary forms as well as mathematical concepts, to communicate the way that an algorithm works and to convince a reader that the results will be correct.