写作是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。

To me programming is more than an important practical art. It is also a gigantic undertaking in the foundations of knowledge.

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.

迈向可持续实践的每一个小步骤都很重要；完美不是目标，进步才是。