Roman Catholicism and Ancient Greek Philosophy make up a primary theme in this book. When the Catholic Church's representatives met with the ancient knowledge of an Athenian and a Macedonian who loved Athens, they were taken aback. The philosophical power of the Athenians, particularly Plato and Aristotle, even more so for those who include Socratic philosophy as part of Plato's works was enough to send lesser minds reeling. Many Catholics had learned of them and had written on them. Over the centuries, these were confronted and addressed.