从近处看，生活是悲剧；从远处看，生活是喜剧。

光的质量就是空间的质量。

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 database is the heart of the application, and the application is the heart of the business. The key to performance is to keep the hot data in memory.

初期教育应是一种娱乐，这样才更容易发现一个人天生的爱好。