在1798年，托马斯·马尔萨斯写了一篇名为《人口原理》的书。

In 1798 Thomas Malthus wrote "An Essay on the Principle of Population".

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他受到托马斯·马尔萨斯作品《An Essay on the Principle of Population》(《人口原理》)的影响，这部著作，马尔萨斯写于1798年。

He was influenced by Thomas Malthus' work, "An Essay on the Principle of Population" written in seventeen ninety-eight.

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本文具体分析了马尔萨斯在人口原理中运用的四种方法，并对其特征进行了概括。

This paper analyzes the four methods within Malthus' population theory and summarizes their characteristics.

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