Award-winning writer Mark Shea concisely describes the roots of Catholic Social Teaching in Scripture and Tradition and gives simple, practical examples of how it works in ordinary life. Sketching the meaning of the Dignity of the Human Person, the Common Good, Subsidiarity, and Solidarity, Shea bridges the gulf in our politics and cultural warfare to make the case that Catholic Social Teaching, properly understood, is common sense, as well as the path to living a happier and more just common life for each human person.