One can't proceed from the informal to the formal by formal means.

The strongest is never strong enough to be always the master， unless he transforms strength into right， and obedience into duty.

你不尝试就不知道你能达到什么。

To be a Christian without prayer is no more possible than to be alive without breathing.

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。