为什么这东西叫美国梦，因为你只有睡着了才能相信。
The reason they call it an American Dream is because you have to be asleep to believe it.
生活是一系列无尽的重复，每一次都比上一次更无意义。
The beauty of instrumental variables is that they allow us to see the world in a new light.
The complexity of viruses reminds us how much we still have to learn about biology.
每个算法都讲述了一个故事，一个从问题到解决方案的步骤叙述。
不作恶。