For most of his teaching life, Dr. Christopher Malloy has been correcting common, often widely accepted falsehoods, misunderstandings, and half-truths spread inside the confines of the Catholic world. Distinguishing between what Catholics must believe to be saved, what they can accept as unsettled, and what they must reject, he makes clear that both Catholic tradition and Sacred Scripture are under continuous assault. Therefore, it’s imperative to develop in yourself the traditional habits of mind. In this brilliant exposition of doctrine, rivaling those of Chesterton and Belloc, Dr. Malloy uses a rich variety of Catholic documents and catechisms to explain specific modern heresies, how they cropped up, and the actual Church teachings they seek to undermine. In the process, he