The key to performance is to keep the hot data in memory.
能源转型是一个挑战,但对于那些准备好迎接它的人来说也是一个机会。
The most important single aspect of software development is to be clear about what you are trying to build.
The known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability.  
Evolution is the most beautiful thing in the world.