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The best businesses solve real problems. Find a need and fill it.

"The truth is rarely pure and never simple."

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.

愛是非理性的。你越愛一個人，就越覺得一切都沒有意義。

Competitive strategy is about being different. It means deliberately choosing a different set of activities to deliver a unique mix of value.

The only way to make progress on sustainability is to align it with business strategy.