Poverty. The environment. The family. Education. Freedom of religion. What is the role of the State in promoting human flourishing in light of unprecedented challenges to the very fabric of society? The State in Catholic Thought is a masterful survey of the development of the Church’s teaching on the relationships between the nation-state and individuals, families, and local and international communities. Professor Bruce Frohnen’s Introduction sets Rommen and his work in political and intellectual context, brilliantly encapsulating Rommen’s analysis and the importance of his magnum opus in assisting readers to find the means of renewing a more just political and social order.