Nor does he pretend that the product of reason's action, the knowledge of human immortality and liberty and of the being of God, place man apart from or above the universal action of God upon all souls by means of a visible society and external ordinances: Catholicity is well named; it is universal.

But he knows that when a man is persuaded of a truth philosophically he is not called upon by his intelligence or his conscience to base it upon historical evidence; it is enough that he has one source of certitude in its favor.

It may be a truth first known by revelation, but if the human intelligence is capable of receiving it in revelation it must have some element of kinship to the truths of pure reason.

As in the order of nature men are like unto God, so is there a likeness between the truth of God naturally known and that known only by revelation.
"As there is an appetite in the human heart which not all the treasures, honors, joys of nature can satisfy, so there is a void in the mind which all the truth within reach of the unaided natural faculties leaves unfilled.

When a man without guile is brought face to face with truth he spontaneously desires union with it.