但是，如果这两个资本所使用的活劳动的量不相等，那末，它们就不能生产相等的剩余价值，或李嘉图学派所说的利润。

But if they employ unequal quantities of actual labor, they cannot produce equal surplus-values, or, as the Ricardicans say, equal profit.

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根据“替代原理”和利润最大化的假定，新古典学派得出命题：利润率与人均资本量之间存在着反向单调关系。

Based on the substitute principle and profit maximization, neo-classical economics get the proposition that the relationship between profit rate and capital stock per capita is negatively monotony.

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