支付现金会使人们在购买时考周全，进而在选择食物时也更加慎重。

People who use cash think more carefully about what they're purchasing, and that extends to the food choices they make.

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在购买时，你可以用任何语言，但在销售时，你必须使用购买者的语言。

You can buy in any language but you have to sell in the language of the buyer.

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这批16500份的避孕用品将免费在麦克默多科考站的工作人员中分发，“来避免在购买时存在潜在的难堪”。

The prophylactics, all 16, 500 of them, will be distributed, free of charge, among the McMurdo staff “to avoid the potential embarrassment of having to buy them.”

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Moreover, beyond that, how does one know, in taking out an insurance policy, that the insurance company is going to be sound?

除此之外，在人们购买保险时，该如何得知保险公司，会严格按照保单言而守信呢？

耶鲁公开课 - 金融市场课程节选

One is a sort of short-term type of prediction and that is looking at investing and purchasing products.

其中一个区域主管短期预测,主要在投资和购买物品时发挥作用。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选