Overshadowed by the violent reaction throughout the world, the September 12, 2006, lecture by Pope Benedict XVI at Regensburg, Germany, at the university where he once taught, is a multifaceted and brilliant speech that addresses the very nature of man’s understanding of a free conscience, his thirst for knowledge in both reason and revelation, his understanding of the limitations of the will, and the nature of his ability to understand his neighbor. Though incredibly timely, it is as timeless as the Gettysburg Address, Pericles’ Funeral Oration, Plato’s Apology, and Henry V’s Speech on St. Crispin’s Day. No doubt it will be studied and read for generations to come, not only by Catholics, not only by Christians, but by men of good will the world over. So it is fitting that our world’s modern G.K. Chesterton —James Schall—has chosen to explicate this most-important work by the world’s premier theologian on the thorniest, most divisive questions of our day. He is the perfect person to explain both the central concepts and the importance of this amazing speech.