"Again, let a Tradesman but have this intention, and it will make him a saint in his shop; his everyday business will be a course of wise and reasonable actions, made holy to God, by being done in obedience to his will and pleasure... He will therefore consider, not what arts, or methods, or applications will soonest make him richer and greater than his brothers, or remove him from a shop to a life of state and pleasure; but he will consider what arts, what methods, what application can make worldly business most acceptable to God, and make a life of trade a life of holiness, devotion, and piety. This will be the temper and spirit of every tradesman; he cannot stop short of these degrees of piety, whenever it is his intention to please God in all his actions, as the best and happiest thing in the world."
This is a favorite topic of mine. Expect more where this came from!