Sadly, your traditions cannot make that same statement. And after reading the comments today, it looks very much like you don't even want to make that statement.
Somehow, according to your new RCC/EO summer of love, you both have relegated the Bible to a compendeum of superstition, supposition, suggestion and anecdotes.
You show very little trust in the Holy Spirit to guide you through God's word.
"If any man think himself to be a prophet, or spiritual, let him acknowledge that the things that I write unto you are the commandments of the Lord." -- 1 Corinthians 14:37
Something that I have been curious about: If the RCC/EO are separated because of political, not theological differences, why not use the same catechism? AND, why would an RCC remain an RCC but study with admiration the doctrines of the EO (and vise versa?)? Since they are the same (?) why not just attend an EO church if you think that they have superior understanding? It is not as though there is a geographic (East/West) impossibility. Just curious.