有人自认为在做有用的事，却收效甚微；有人看似在做“无用”之功却流芳后世，引为大用。

The most important computer is the one that rages in our skulls and ever seeks that satisfactory external emulator. The standarization of real computers would be a disaster - and so it probably won't happen.

The social brain hypothesis suggests that our intelligence evolved to manage our complex social lives.

热爱你过的生活，过你热爱的生活。

确保和平的最佳方式是维持大国之间的权力平衡。