一本好书是一个永远不会让你失望的朋友。

One of the advantages of being old is that you can speak your mind without worrying about the consequences.

如果你想成为最好的，努力就永远不会停止。

The only limits that exist are the ones you place on yourself.

The best way to debug a program is to make it work.

居身平安之境要考虑危难之时，处身太平盛世要想到乱世之日。