translation.en: That's why they don't know whether their mutual fund manager is taking 0.1 percent or 0.15 percent of their investment, but they clip coupons to save one dollar off of toothpaste.
translation.zh: 这就是为什么人们不关心基金经理 从他们的投资中拿0.1% 还是0.15%的佣金， 但是他们会收集折扣券， 就为了买牙膏的时候少花1美元。