When I trained in economics, Malthusian reasoning was a target of mockery, held up by my professors as an example of a naive forecast gone wildly wrong.

• 在我的经济学训练过程中，马尔萨斯的理论是我们嘲笑的对象，教授以他为例来说明一个天真的预测可能错得多麽离谱。