出自北齐·颜之推《颜氏家训·勉学》。没有把天下所有的书读个遍，就不要信口雌黄的发表观点。

The key to performance is to keep the hot data in memory.

每一天都是一个新的机会。

I am always glad to think that my education was, for the most part, informal, and had its roots in the real world.

失败只是通往成功的又一步。