This book offers a new type of working tool for Cartesian studies.

In our own time, this book serves as a foundational textbook of Thomistic philosophy, communicating its wisdom with clarity, power, and perennial resonance.

Finally, the text ends with an important essay on the principle of the mutual interdependence of causes, causae ad invicem sunt causae, sed in diverso genere.

Fr. Reginald Garrigou-Lagrange, O.P., explains why Thomism is the solution to the present crisis of Modernism in the Church.

The volume begins by setting the historical context for nouvelle théologie with discussions of the influence of significant theologians and philosophers like Möhler, Blondel, Maréchal, and Rousselot.