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The deepest problems in mathematics often arise from the simplest questions.
循环经济是一个创造价值的机会,而不仅仅是减少浪费。
The stupid believe that to be truthful is easy; only the artist, the great artist, knows how difficult it is.
劳动是创造财富的唯一途径。
One strategy: "We've had three big ideas at Amazon that we've stuck with for 18 years, and they're the reason we're successful: Put the customer first. Invent. And be patient."