>>591523
Per the council of Florence, 5 doctrines separate us.
- The filioque. It is a problem of pneumatology. Catholics believe the Holy Spirit proceeds from the Father and the Son, Orthodox believe the Holy Spirit proceeds from the Father alone.
- The legitimacy of the filioque's addition to the creed. Catholics believe that the Pope had the authority to add the phrase "filioque" ("and the Son") to the Nicene-Constantinopolitan Creed. Orthodox believe that ecumenical councils are the highest authority, and so nothing has the authority to add to the creed, not even another ecumenical council.
- The use of azymes. Catholics believe that it is equally correct to use unleavened or leavened bread for the Eucharist. Orthodox believe that only leavened bread may be used.
- Purgatory. Catholics believe in three states for the soul after death: Paradise, Purgatory, and Hades. Orthodox believe only in Paradise and Hades.
- Papal primacy, and how it is to be exercised. Catholics believe that the Pope is fundamentally always the head of the Church and can never lead the Church of Rome into heresy, and furthermore, he has jurisdiction over the entire Church, not over Rome alone. Orthodox believe that the Pope is equal to any other bishop and the Church of Rome isn't fundamentally unable to fall into heresy, and the Pope only has jurisdiction over the West.
I don't want to explain why I decided to begome, because I'm not in the mood for a fight. However, there are two very good books on the history of the schism that you should check out, both by Edward Siecienski:
- The Filioque: History of a Doctrinal Controversy
- The Papacy and the Orthodox: Sources and History of a Debate