Experience is a good school, but the fees are high.

数据库是企业中最重要的软件，而企业中最重要的软件是数据库。数据库是所有应用程序的基础。数据库是应用程序的心脏，而应用程序是业务的心脏。

我不想完美，我只想真实。

The work is a kind of mapping.

The challenge in science is not just to find answers but to understand their deeper implications.

The dead have much to teach the living.

责怪小人为颠倒豪杰之士，而不知只有颠倒的人才是小人。可怜君子受世事折磨，而不知只有在折磨之中才能见到君子。