Here's the book for a world pretending everything is gray—even truth. St. Irenaeus gave us the first Against the Heresies (Adversus Haereses) in the second century. In the 20th, it is as of a second Irenaeus that we present these conferences by Archbishop Lefebvre under the same title. They both address the same problem: Man playing God.
Archbishop Lefebvre analyzes the various aspects of Liberalism in the same way Irenaeus did of Gnosticism.
As St. Irenaeus addressed the philosophical errors and presented the Catholic response, which is the rule of the Catholic Faith in the Creed, so, too, does Archbishop Lefebvre show how the modern errors in the Church and society are so opposed to our unchanging Catholic Faith.
The solution is the same. Catholic Tradition. The Deposit of Faith. The authority of the Holy See.
Six popes resurrected from the last 150 years. 11 key encyclicals. Against the heresies and the heretics, especially the Freemasons and the Liberals. All taught by Archbishop Lefebvre in the style of his other most popular work, Open Letter to Confused Catholics.