Catholic Social Teaching

Pope Leo XIV questioned the Catholic teaching of just war theory in modern warfare and wrote about slavery in an unprecedented way.

This is not a future problem. This is a now problem. Time to get to work.

What does it mean to safeguard our humanity? That question is at the heart of “Magnifica Humanitas.”

Pope Leo XIV’s widely anticipated encyclical on artificial intelligence is here, and it offers a clear path forward to one of the most pressing challenges of our age.

Pope Leo opens the first encyclical of his pontificate by saying that humanity today faces a pivotal choice — “either to construct a new Tower of Babel or to build …

Day’s life of faith inspired others, said Father Anthony Andreassi, administrative vicar for the Brooklyn Oratory Parishes in Brooklyn Heights.

The Church’s teaching on the rights and dignity of migrants can help guide conversations about immigration reform, Bishop Steven R. Biegler of Cheyenne wrote.

“He generously mentored many priests and bishops and championed the apostolate of the laity and their vital role in the public square.”

Pope Leo XIV urged the wealthy citizens of Monaco to remember the poor and protect every human life, saying the Last Judgment “places the poor at its center.”

Jesuit Father John Courtney Murray played a key role in drafting Vatican II’s landmark Declaration on Religious Freedom, “Dignitatis Humanae,” in 1965.