Fides et Ratio §90

⁹⁰ The positions we have examined lead in turn to a more general conception which appears today as the common framework of many philosophies which have rejected the meaningfulness of being. I am referring to the nihilist interpretation, which is at once the denial of all foundations and the negation of all objective truth. Quite apart from the fact that it conflicts with the demands and the content of the word of God, nihilism is a denial of the humanity and of the very identity of the human being. It should never be forgotten that the neglect of being inevitably leads to losing touch with objective truth and therefore with the very ground of human dignity. This in turn makes it possible to erase from the countenance of man and woman the marks of their likeness to God, and thus to lead them little by little either to a destructive will to power or to a solitude without hope. Once the truth is denied to human beings, it is pure illusion to try to set them free. Truth and freedom either go together hand in hand or together they perish in misery.