忽视环境影响的生产力指标只是会计把戏，而非真正的进步。
Productivity metrics that ignore environmental impact are accounting tricks, not real progress.
唯一确定的是不确定性。
The most important single aspect of software development is to be clear about what you are trying to build.
The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.