数学的研究是所有智力和精神进步不可或缺的基础。
The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
The most important single aspect of software development is to be clear about what you are trying to build.
我们相信平凡的勇敢行为,相信那种驱使一个人为另一个人站出来的勇气。
No man really knows about other human beings. The best he can do is to suppose that they are like himself.