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.

Therefore once for all this short command is given to you. 'Love and do what you will.' If you keep silent, keep silent by love; if you speak, speak by love; if you correct, correct by love; if you pardon, pardon by love: let love be rooted in you, and from the root nothing but good can grow.

As to those other things which we hold on the authority, not of Scripture, but of tradition, and which are observed throughout the whole world, it may be understood that they are held as approved and instituted either by the apostles themselves, or by plenary Councils, whose authority in the Church is most useful, e.g. the annual commemoration, by special solemnities, of the Lord's passion, resurrection, and ascension, and of the descent of the Holy Spirit from heaven, and whatever else is in like manner observed by the whole Church wherever it has been established.

We who preach and write, do so in a manner different from which the Scriptures have been written. We write while we make progress.We learn something new every day. We speak as we still knock for understanding...If anyone criticizes me when I have said what is right, he does me an injustice. But I would be more angry with the one who praises me and takes what I have written for Gospel truth than I would be with the one who criticizes me unfairly.

Seek not to understand that you may believe, but believe that you may understand.

We should never use the truth to wound.

What you see is the bread and the chalice; that is what your own eyes report to you. But what your faith obliges you to accept is that the bread is the body of Christ and the chalice is the blood of Christ. This has been said very briefly, which may perhaps be sufficient for faith; yet faith does not desire instruction