The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

心灵需要书本，就像一把剑需要磨刀石。

The most important single aspect of software development is to be clear about what you are trying to build.

Technology should serve sustainability, not the other way around.

你的热情应该大于你的恐惧。