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If you're going to innovate, you have to be willing to fail. If you're going to try new things, then you have to be willing to accept that you might fail.
The problem of quality management is not what people don't know about it. The problem is what they think they do know.
软件一直处于紧张状态。具有象征意义是任意完美的。但它也可以任意更改。