The author is Risa Mickenberg and the book is just a compilation of quotes from New York City taxi drivers. The quote I'm providing here is from the author's introduction.
The next time you're in a taxi, ask the driver what function truth serves. Ask why evil exists. Ask if jealousy contradicts love. At first, it might seem a little strange to ask a person who can't even find the Holland Tunnel to give your life direction, but try it. Keep your mind and your bulletproof window open. As Ralph Waldo Emerson said, "In every man, there is something wherein I may learn of him." Or, as one cab driver put it, "If you're a smart person, you can see what's smart about the next guy. If you're secretly afraid you're a moron, okay, then to you, everybody's a moron."Part of the reason I love this book is because I have had the best conversations with taxi drivers, and not just in New York. The best by far was the New York cab driver who told me, in a way I can never fully do justice, how I could be just deceptive enough to get hired to a job I wasn't fully qualified to do. And how I could continue that deception long enough into the job for me to gain the experience that would make me qualified, thereby, creating a no-harm no-foul result. I was 21, just graduating from college, and utterly fascinated. I wish I had written down some of the exact words and phrases he used, but I'll happily take Taxi Driver Wisdom as a surrogate.