Some people hate me because I defend free markets. Once someone accosted me on a New York City street and said, "I hope you die soon." Why the hostility to commerce? What could be more benign than the freedom to trade with whomever you wish? I suspect ignorance about economics leads many to believe that when two people exchange goods and money, one wins and the other loses. If rich capitalists profit, the poor and the weak suffer. That's a myth. How many times have you paid $1 for a cup of coffee and after the clerk said, "thank you,"...