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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!
Program testing can be used to show the presence of bugs, but never to show their absence!
The greatest knowledge is to know oneself.
Rule of 7 in research. You can find out anything if you are willing to go seven levels. If the first source you ask doesn’t know, ask them who you should ask next, and so on down the line. If you are willing to go to the 7th source, you’ll almost always get your answer.
The key to success is to anticipate market trends and act decisively.