我们可以从用户提出的一个简单问题入手：我们为什么要花钱买可以免费得到的东西？

We can start with a simple user question: why would we ever pay for anything that we could get for free?

youdao

我并没有说不要花钱买可以让你得到快乐的东西，我的意思是：在消费的时候等一下，想一想，确定你购买的东西即重要又有用，而不是一味的买一堆东西，要基于目的和价值消费而不是习惯性消费。

Don’t just buy a bunch of Stuff.” Buy based on your goals and values, not out of habit.

youdao

你可以买保险以备治疗患病之需。

You can hedge against illness with insurance.

《柯林斯英汉双解大词典》

You could buy a policy that protected you against your family not having the money to bury you if you died.

你可以买份保单,能使你避免,因家庭贫困而无钱供你死后下葬

耶鲁公开课 - 金融市场课程节选

You could do a lot of shopping and a lot of damage to your bank account on Fifth Avenue.

你可以在第五大道买很多东西，刷爆你的卡。

小心超额消费 - SpeakingMax英语口语达人

Well, you can buy a pass, which would seem conceptually not to be a ticket, but at top left was somewhat obvious this time bus and subway tickets.

好的，你可以买一张通票，那好像不是一张票,但是，在右上边，这次显然是,公共汽车和地铁票。

哈佛公开课 - 计算机科学课程节选