人之有生，不为一已。
We are not born for ourselves.
过度的道路通向智慧的宫殿。
关于外行编程的最好的书是；但这是因为对于外行来说这是最好的书。
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！
If you can't understand why someone is doing something, look at the consequences of their actions, whatever they might be, and then infer the motivations from their consequences.