RESUMEN:
«Faith does not blind reason. It makes it more lucid, and so the inherent finality of beings, that reason alone can perceive, although with difficulty, supplies a helpful guiding light in the perception of the "verum bonum" in virtuous action. Since both creation and redemption are acts of the same, coherent God, there is no basic contradiction between the revealed law, the law of grace, and the natural law.» [Sólo esto]

TEXTUAL:
Faith does not blind reason. It makes it more lucid, and so the inherent finality of beings, that reason alone can perceive, although with difficulty, supplies a helpful guiding light in the perception of the "verum bonum" in virtuous action. Since both creation and redemption are acts of the same, coherent God, there is no basic contradiction between the revealed law, the law of grace, and the natural law.

FUENTE:
GIERTYCH, Wojciech: 3 A comparison with classical virtue theory

FUENTE AMPLIADA:
GIERTYCH, Wojciech: "Problems and Prospect" on Natural Law Ed. , Roma, 3000 (2007)