Using their certificates, they can take means of consumption which used up the same amount of labor; this is not money because it cannot be accumulated.

用这份证书，他们可以领取与他所耗费劳动量相当的消费资料；但这证书并不是货币，因为它不能用以积累。

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Ricardo, but not Keen, used a "labor theory of price" in which a commodity's "innate worth" was the amount of labor needed to produce it.

但不是Keen，使用了“价格劳动论”，认为商品的“内在值”指生产它需要的劳动量。

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Therefore, to a certain extent, capital can be used to replace labor or reduce the amount of physical and mental labor that humans have to use in order to conduct business.

因此，在某种程度上，资本可用来替代或减少人类为了经营企业必须使用的体力和脑力劳动量。

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