分布式系统是指一个你甚至不知道存在的计算机的故障可能导致你自己的计算机无法使用。
What appears good to one may appear evil to another， and vice versa.
The ability to be alone is the ability to love. It may look paradoxical to you, but it's not. It is an existential truth: only those who can be alone are able to love, to share, to go into the deepest core of another human being—without possessing the other, without becoming dependent on the other, without reducing the other to a thing, and without becoming addicted to the other.
