I describe an ethic for business administration based on the social tradition of the Catholic Church. I find that much current thinking about business falters for its conceit of truth. Abstractions such as the shareholder-value model contain truth - namely, that business is an economic enterprise to manage for the wealth of its owners. But, as in all abstractions, this truth comes at the expense of falsehood -namely, that persons are assets to deploy on behalf of owners. This last is (...) "wrong" in both senses of the word - it is factually wrong in that persons are far more than business assets, they are supernatural beings, children of God; and it is morally wrong in that it is an injustice to treat them as the former when they are the latter. I draw upon the social tradition of the Catholic Church to recognize that the business of business is not business, but is instead the human person. Following Church teachings, I describe a person-centered ethic of business based upon eight social principles that both correct and enlarge the shareholder-centered ethic of much current business thinking. I discuss implications of this person-centered ethic for business administration. (shrink)