Every Monday

Magisterium Monday

A simple home for the materials used in each lesson: readings, PDFs, charts, and interactive quizzes.

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June 15, 2026

Magnifica Humanitas

Pope Leo XIV

Leo XIV's encyclical on safeguarding the human person in the age of artificial intelligence — the dignity of the person and the five principles of Catholic social teaching, read between the images of Babel and Nehemiah.

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May 18, 2026

Aeterni Patris

Aeterni Patris

Pope Leo XIII

Leo XIII's charter of the modern Thomistic revival: philosophy as the servant of faith, the patristic and Scholastic witnesses, and the call to restore the wisdom of St. Thomas Aquinas.
May 11, 2026

On the Principles of Nature

De Principiis Naturae

St. Thomas Aquinas

Lesson materials for St. Thomas's early treatise on matter, form, privation, the four causes, act and potency, and the order of the categories.

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Magisterium Monday

Magnifica Humanitas

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Aeterni Patris

On the Principles of Nature