短期收益不应损害长期可持续性。

永远不要回头看，除非你想走回去。

It is the preoccupation with possessions， more than anything else， that prevents us from living freely and nobly.

The computer is incredibly fast, accurate, and stupid. Man is unbelievably slow, inaccurate, and brilliant. The marriage of the two is a force beyond calculation.

志村簇的研究证明了几何直觉的力量。