No great artist ever sees things as they really are. If he did he would cease to be an artist.

要理解一个程序，你必须同时成为机器和程序。

In mathematics, the journey is often more important than the destination.

译文：能写文章的人，善于引用名言，虽只寥寥数语，却起到了画龙点睛的作用，使文章读起来更加优美、更加动人。