The greatest tragedy in the history of Christianity was neither the Crusades nor the Reformation nor the Inquisition, but rather the split that opened up between theology and spirituality at the end of the Middle Ages.

The work with which we embark on this first volume of a series of theological studies is a work with which the philosophical person does not begin, but rather concludes.

Christian obedience, by its very nature, has a heroic character.

There is much in Christianity which can be subjected to exact analysis. But the ultimate things are shrouded in the silent mysteries of God.

Whoever removes the Cross and its interpretation by the New Testament from the center, in order to replace it, for example, with the social commitment of Jesus to the oppressed as a new center, no longer stands in continuity with the apostolic faith.

Love alone is credible.

But the issue is not only life and death but our existence before God and our being judged by him. All of us were sinners before him and worthy of condemnation.