托马斯·马尔萨斯：人口论·摘录 110

During the next period of doubling, where will the food be found to satisfy the importunate demands of the increasing numbers? Where is the fresh land to turn up? Where is the dressing necessary to improve that which is already in cultivation? There is no person with the smallest knowledge of land but would say that it was impossible that the average produce of the country could be increased during the second twenty-five years by a quantity equal to what it at present yields. Yet we will suppose this increase, however improbable, to take place. The exuberant strength of the argument allows of almost any concession. Even with this concession, however, there would be seven millions at the expiration of the second term unprovided for. A quantity of food equal to the frugal support of twenty-one millions, would be to be divided among twenty-eight millions.

出处： https://www.gutenberg.org/ebooks/4239
定位：Excerpt 110 · 核对日期：2026-10-19 · 核验：短摘录

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