First preached to overflowing congregations in 1930s Dublin, these forceful sermons defend the enduring relevance of the Ten Commandments against the rising tide of moral relativism. With clarity and pastoral urgency, they show how the Decalogue, faithfully interpreted by the Catholic Church, provides sure guidance for personal conduct and social order alike. Addressing questions of liberty, revolution, education, purity, and justice, this book exposes the consequences of abandoning God’s law and calls readers back to clear thinking, sound morality, and the only path that leads society away from ruin and toward renewal.