In distributed systems, the key challenge is achieving consensus among unreliable components.
在数学中,最简单的问题往往导致最深刻的发现。
We are all waiting for something, even if we don’t know what it is.
People with a sense of fulfillment think it a good world and would like to conserve it as it is, while the frustrated favor radical change.
 对于每一个出现的表象,我们应该提出相等的表象。