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The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.

Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.

我不完美，但我就是我。

生活中唯一的限制是你自己設(shè)定的。