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We've done price elasticity studies, and the answer is always that we should raise prices. We don't do that, because we believe -- and we have to take this as an article of faith -- that by keeping our prices very, very low, we earn trust with customers over time, and that that actually does maximize free cash flow over the long term.

“唯一真正普遍的是人類的經驗。”

經驗只是我們給錯誤起的名字。

每個產品在設計時都應考慮到它的下一次生命。