抽象的力量在计算机科学中至关重要，它使我们能够专注于问题的本质方面。
The power of abstraction is crucial in computer science, allowing us to focus on the essential aspects of a problem.
You have never lived until you've almost died.For those who have fought for it, life has a flavor the protected shall never know.
There's a tendency to think that our present politicians are much worse than we had in the past.But we tend to forget how awful our politicians were in the past.
能源的未来取决于我们的创新能力。
最好的文学源于冲突，源于欲望与道德之间的斗争。