In this essay for a symposium on Professor Nathan Oman\u27s new book, The Dignity of Commerce, I do three things. First, I describe what I take to be the central message of the book, namely, that markets promote liberal values of tolerance, pluralism, and cooperation among rival, even hostile groups. Second, I show how Oman\u27s argument draws from a line of political and economic thought that dates to the Enlightenment, the so-called doux commerce thesis of thinkers like Montesquieu and Adam Smith. Finally, I discuss what I consider the most penetrating criticism of that thesis, Edmund Burke\u27s critique from tradition, which suggests we should be careful attributing too much to markets\u27 ability to promote liberal pluralism. Accordin...