Almost twenty years ago I learned an important lesson in Christian ethics from a Jewish writer. In his book, Think a Second Time, Dennis Prager explains a principle from the Talmud about consumer ethics. While I had read several book about business ethics, I don’t recall ever hearing much, if anything, about the ethical obligations of consumers.

Prager helped me see not only how the “shopkeeper’s law” should apply to my consumer choices, but also to many of the relationships in my life. This lesson helped me to understand a practical way of applying the most important principle in Christian ethics (Matthew 7:12).

In the video below, Prager explains the concept and how it shows “the customer isn’t always right.”