There is reason to regret that a cleavage between East and West began to appear in the Middle Ages through the sibling rivalry of the Byzantine and Catholic Empires and Churches.

• 人们有理由感到遗憾的是，由于中世纪的拜占庭帝国和天主教皇和基督教协进会之间的纷争，东方和西方之间开始出现分裂。