The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.
在市场设计中，简洁往往能带来更好的结果。
Writing is not about revealing the truth, but about creating a space where the truth can be discovered.
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.