The challenge in computer science is not just to solve problems, but to solve them in a way that is both efficient and elegant.
作一年的打算,最好是种植五谷;作十年的打算,最好是种植树木;作终身的打算,最好是培育人才。
The tragedy of great power politics is that even well-intentioned states are forced to act in ways that can lead to conflict and war.