The majority of these interviews grew out of my daily drives for Uber and Lyft. Each time I picked up a new passenger I would ask them one question: What are some of the things you have learned in life? Most were very willing to talk to me, and I found many of their responses to be intelligent, thoughtful, occasionally humorous, and often very wise. After a while I decided their answers would be interesting to others and make a good book. So I created...