Life is too short to be anything but happy.
多项式时间归约的概念对于理解NP完全问题的结构至关重要。
建筑之美不在于装饰，而在于形式和空间的恰当性。
The most important thing is to be honest in your writing.
您横越过不毛之年的沙漠而到达了圆满的时刻。