Pig farming is a technical job, not everyone can do it well.
养猪是个技术活,不是谁都能养好的。
每个程序都是其他程序的一部分,很少适合。
永远不要低估一个精心设计的实验的力量。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.