办一件事都不能善始善终,就不要做很多事。 
你知道的越多,能想象的越多。你想象的越多,能知道的越多。
The real challenge in computer science is not to write programs, but to understand the nature of computation.
Sustainability isn't a cost—it's an investment in our future.
It is so hard to believe because it is so hard to obey.
生命短暂,你有责任让它甜美。