道是虚无中最真实的存在；术是变化中最玄妙的技艺。

Don’t take it personally when someone turns you down. Assume they are like you: busy， occupied， distracted. Try again later. It’s amazing how often a second try works.

To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.

The art of programming is the art of organizing complexity, of mastering multitude and avoiding its bastard chaos as effectively as possible.

我们误以为书能带来慰藉，其实它们只是加深了我们的悲伤。