We must come to see that God is not so much the cause of moral obligation or the sanction of duty as the very substance of Good. Then what we call th… - Henri de Lubac

The supernatural dignity of one who has been baptized rests, we know, on the natural dignity of man, though it surpasses it in an infinite degree.[…] Thus the unity of the Mystical Body of Christ, a supernatural unity, supposes a previous natural unity, the unity of the human race.[…] Was it not shown […] in Genesis where it was taught that God made man in his own image? For the divine image does not differ from one individual to another: in all it is the same image.[…] Whence comes the notion, so beloved of Augustinianism, of one spiritual family intended to form the one city of God.

Flight, Escape: that in fact was Plato's dictum regarding the soul that acknowledges in itself a principle superior to the world. Plotinus, in his turn, recommended to his disciple the "flight of the alone to the Alone", and then Porphyry expiates on the setting free and the withdrawal of the soul. The same terms may be encountered in the religious philosophies of India.[…] With the Buddhist, too, it is the same act of negation, whether he denies the existence of the world or believes in the reality of his present wretchedness; and he who practises charity to a degree that sometimes reaches the sublime in the last resort relinquishes even that. Asanga, the great mystical doctor of the Mahâyâna, when he starts to map out the path of his bodhisattva's ascent from "world" to "world" until he reaches the very highest state, which is that of Nirvâna, as a matter of course describes it as a whole series of evasions: niryàna; so much so that it has been said that Buddhism's only God is Escape.

To see in Catholicism one religion among others, one system among others, even if it be added that it is the only true religion, the only system that works, is to mistake its very nature, or at least to stop at the threshold. Catholicism is religion itself. It is the form which humanity must put on in order finally to be itself.