来自《耶鲁大学开放课程：金融理论 第1集 第1集》

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  So that's twenty years of that and then you're going to live
  接下来20年都是如此
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  another twenty years when you're going to be making nothing.
  但之后的20年你就无法继续拿工资了
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  So how much of the hundred-fifty-thousand,
  那么你该花15万中的多少
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  and let's say inflation is three percent,
  假设通胀率是3%
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  and what you'd like to do is consume inflation corrected the
  而且你退休前和退休后
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  same amount every year after you retire and before you retire,
  应该每年消费经过通胀纠正的同等金额
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  and so how much of the hundred-fifty-thousand should
  那么你该每年消费15万中的多少钱
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  you spend this year and how much should you save?
  又存多少钱呢
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  You'll learn very quickly how to do a problem like that.
  你将学到怎么解决这样的问题
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  Now, President Levin wrote a few months ago,
  校长几个月前写过
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  the end of last year if you remember, he said that,
  那是去年底 他说
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  "Well, the crisis was bad.
  金融危机真是糟糕