Alexis de Tocqueville

Trade is the natural enemy of all violent passions. Trade loves moderation, delights in compromise, and is most careful to avoid anger. It is patient, supple, and insinuating, only resorting to extreme measures in cases of absolute necessity. Trade makes men independent of one another and gives them a high idea of their personal importance: it leads them to want to manage their own affairs and teaches them to succeed therein. Hence it makes them inclined to liberty but disinclined to revolution.