Christian teaching reveals God and His infinite perfection with far greater clarity than is possible by the human faculties alone....From that same teaching we learn prudence of the spirit, and thereby we avoid prudence of the flesh; we learn justice, by which we give to every man his due; fortitude, which prepares us to endure all things and with steadfast heart suffer all things for the sake of God and eternal happiness; and, last of all, temperance through which we cherish even poverty borne out of love for God, nay, we even glory in the cross itself, unmindful of its shame. In fine, Christian teaching not only bestows on the intellect the light by which it attains truth, but from it our will draws that ardor by which we are raised up to God and joined with Him in the practice of virtue.
Pius X, Acerbo nimis.