It highlights that this work was written for missionaries , not just academics.

A sidebar that connects 13th-century metaphysical questions (like the eternity of the world) to modern debates in physics, cosmology, and ethics. 💎 Why It’s Useful

For every chapter, users can toggle a "Steel-man" mode. This expands on the views of the "Gentiles" (philosophers, Muslims, or pagans) that Aquinas is addressing, making their positions clearer before reading his rebuttal.