A good way to avoid unproductive arguments is indeed to keep them rooted in written materials of the Church, and especially canonical scripture.
Romans 15:3-4
Indeed, the Holy Scripture is written to teach us.
Merry Christmas. Here's a present.
Why do you change what scripture says?
1 Corinthians 4:6 And these things, brethren, I did transfer to myself and to Apollos because of you, that in us ye may learn not to think above that which hath been written, that ye may not be puffed up one for one against the other,
No where in that verse does it say "written materials of the Church". It says "which hath been written". The Catholic Church doesn't go by what "hath been written". Once again, corrupting what the Holy Spirit says in scripture.
>>Indeed, the Holy Scripture is written to teach us.<<
Roman Catholics surely haven't learned.
So is Paul