How otherwise could one discern a baptized infant from an unbaptized one, if not by the knowledge that one has been baptized? Yet if, as he ages, the baptized child remains faithful to his vocation, his exterior comportment will allow something of that light which enlightens him to shine forth. If he becomes a saint, that hidden flame within him will be able, in a certain measure, to pass outside and surround him with a bit of that radiance which, according to the [First] Vatican Council, miraculously manifests the divine character of the Church.
Charles Cardinal Journet (1891–1975)