Today is the feast day of St. Josaphat of Polotsk, a "a martyr to church unity". (For more on St. Josaphat, see here.)
St. Josaphat, pray for us, that all Christ's followers may be one, as Christ and the Father are one.
"Let unity, the greatest good of all goods, be your preoccupation." - St. Ignatius of Antioch (Letter to St. Polycarp)