来自《耶鲁大学开放课程：资本主义：成功、危机与改革 第2集 第2集》

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  Food and drink accounted for three quarters of spending
  饮食就要占掉开销的四分之三
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  and I think this is pretty good empirics.
  我认为这估算得很准
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  Clothing and bedding 10%, housing and heating,
  衣服和被褥占10% 住房和取暖
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  light and soap, not much.
  照明和洗漱所费不多
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  Life was pretty dark, pretty limited.
  生活暗无天日 限制重重
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  The level of discretionary spending was very slight.
  可自由支配的收入非常地少
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  There's a general rule called Engel's Law,
  有一条定律叫做恩格尔定律
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  and this is not the Engel's who worked with Marx,
  这位不是和马克思一起工作的恩格斯
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  this is Ernst Engels, lived in the 1800s,
  而是生活在十九世纪的恩斯特·恩格尔
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  that as real incomes go up the fraction spent on food goes down,
  实际收入增长 用于食物的开支减少
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  and while that's not exactly a blinding insight
  尽管这条定律不是多么深刻
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  it nonetheless has the advantage of being a true statement.
  不过至少是说了句大实话