An apple four hundred years ago led to the law of gravity while the apple designed by Steve Jobs has changed our life greatly.

四百年前的一个苹果带来了万有引力定律，而史蒂夫有·乔布斯设计的苹果大大地改变了我们的生活。

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It's not a law of gravity, but on average, that tends to be true.

这一规律并非铁律，但是通常情况下，事实就是如此。

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Valuation is the closest thing to the law of gravity that we have in finance.

估值是在我们的理财中最接近万有引力定律的东西。

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Imagine waking up every morning and saying to yourself: "I refuse to accept the law of gravity.

想象每天早上醒来后对自己说：,“我拒绝接受万有引力定律。

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And the aeronautics engineer who wants to build an airplane has to obey, take into consideration, learn it, study and understand the law of gravity.

航空航天工程师,想制造飞机，必须遵守，加以考虑，学习，研究理解万有引力定律。

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Imagine if an aeronautics engineer : woke up in the morning and said, "you know,the Law of Gravity thing really makes things difficult for me.

试想一下，如果一个航空工程师,在早上醒来，说，“万有引力,真的带给我很多麻烦。

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No amount of argument will change the law of gravity as I slip off of a roof.

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But just as when the wind blows a leaf upward, the law of gravity remains intact, so too with the law of demand.

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Now, a simpler method relies on the law of gravity.

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