True freedom is not about doing what you want, but about not doing what you don't want to do.
A distributed system is one in which the failure of a computer you didn’t even know existed can render your own computer unusable.
解释:所谓美的东西,无论在上下、内外还是远近,都不会产生危害,所以才叫做美。
灾祸中依存着幸福,幸福中潜伏着灾祸