停在港口的船是安全的,但那不是造船的目的。
A ship in port is safe, but that's not what ships are built for.
If you're not failing occasionally, you're not pushing hard enough.
(均平的状态下,水)保有内蕴,而外部毫无所动。
大海不拒绝水流,所以成其大;高山不拒绝石块,所以成其高。
在计算机科学中,抽象是管理复杂性的关键。