I had, however, overlooked the fact that in any given society there is, on this definition, a different natural rate of interest for each hypothetical level of employment.

然而，我忽略了一个事实，即在任何给定的社会中，根据这个定义，每个假设的就业水平都有不同的自然利率。

I believed this to be a development and clarification of Wicksell's 'natural rate of interest', which was, according to him, the rate which would preserve the stability of some, not quite clearly specified, price-level.

我认为这是对 Wicksell 的“自然利率”的发展和澄清，根据他的说法，自然利率是保持某些未明确指定的价格水平稳定的利率。

Thus it was a mistake to speak of the natural rate of interest or to suggest that the above definition would yield a unique value for the rate of interest irrespective of the level of employment.

因此，无论就业水平如何，谈论自然利率或暗示上述定义都会产生利率的唯一值是错误的。

I am now no longer of the opinion that the concept of a 'natural' rate of interest, which previously seemed to me a most promising idea, has anything very useful or significant to contribute to our analysis.

我现在不再认为“自然”利率的概念（以前在我看来是最有前途的想法）对我们的分析有任何非常有用或重要的贡献。