"The past is never dead. It's not even past."
Every program has (at least) two purposes: the one for which it was written, and another for which it wasn't.
这些人很少不是死于自己的所长,所以说∶事业达到顶峰就难以持久。 
我们的收入好像我们的鞋子,如果太小就会挤脚并疼痛,如果太大则会绊脚和摔跤。
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.