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數學的力量在于它的普遍性和超越文化界限的能力。

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.

我們需要超越設備本身，專注于它實現的生態系統。