The most important single aspect of software development is to be clear about what you are trying to build.

艺术的功能不仅仅是如实反映现实，更是要想象可能的事物。

Enjoyment appears at the boundary between boredom and anxiety, when the challenges are just balanced with the person’s capacity to act.

自然权利...是每个人按照自己的意愿，为了保全自己的本性，即自己的生命，而使用自己的力量的自由。