The same thing which is now called Christian religion existed among the ancients. They have begun to call 'Christian' the true religion which existed before.
Don't hold yourselves cheap, seeing that the creator of all things and of you estimates your value so high, so dear, that he pours out for you every day the most precious blood of his only-begotten Son.
Although among heretics and schismatics there is the same Baptism, nevertheless, the remission of sins is not operative among them because of the very rottenness of discord and wickedness of dissension ... Baptism was in them, but it did not profit them outside the Church ... Outside the Church, Baptism works death because of discord.
They who shall enter into [the] joy [of the Lord] shall know what is going on outside in the outer darkness. . .The saints'. . . knowledge, which shall be great, shall keep them acquainted. . .with the eternal sufferings of the lost.
Ignorance itself is without a doubt a sin for those who do not wish to understand; for those who, however, cannot understand, it is the punishment of sin.
Who 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.