当你改变看待事物的方式时，你所看到的事物也会改变。
When you change the way you look at things, the things you look at change.
The more we try to control the world, the more it slips through our fingers.
You can obsess about serving your customers/audience/clients， or you can obsess about beating the competition. Both work， but of the two， obsessing about your customers will take you further.
The ultimate aim of the modern movement in biology is in fact to explain all biology in terms of physics and chemistry.
程序测试可以用来显示错误的存在，但永远不能显示它们的缺失！
