剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

The database is the most important piece of software in the enterprise, and the most important piece of software in the enterprise is the database. The database is the foundation of all applications.

The splinter in your eye is the best magnifying-glass.

优雅不是可有可无的奢侈品，而是决定成功与失败的品质。