I do not doubt that all those who have received Baptism anywhere and from whomever do have Baptism, as long as it was consecrated with the words of the Gospel and they received it without pretence on their part and with some degree of faith. However, it would not avail them for their spiritual salvation if they were lacking in that charity by which they might be implanted in the Catholic Church.
Saint AugustineIf you believe what you like in the gospels, and reject what you don't like, it is not the gospel you believe, but yourself.
Saint AugustineWho can map out the various forces at play in one soul? Man is a great depth, O Lord. The hairs of his head are easier by far to count than his feeling, the movements of his heart.
Saint Augustine